Verified Test Bank Ch.10 Jespersen Properties Of Gases

Chemistry: Molecular Nature of Matter, 8e (Jespersen)

Chapter 10 Properties of Gases

1) A special shipping container for compressed gas is rated at 18.50 × 103 kPa. What is this rating in kbar?

(1 atm = 101325 Pa = 760 torr = 760 mm Hg = 1.01325 bar = 1013.25 mb)

A) 14.06 kbar

B) 180.2 kbar

C) 18.02 kbar

D) 0.1850 kbar

E) 18.50 kbar

Diff: 1

Section: 10.2

2) A closed-end manometer was constructed from a U-shaped glass tube. It was loaded with mercury so that the closed side was filled all the way to the top, which was 800 mm above the neck, while the open end was at a level 180 mm above the neck. The manometer was taken into a chamber used for training astronauts. What is the highest pressure that can be read with assurance on this manometer?

A) 62.0 torr

B) 62.5 torr

C) 980 torr

D) 98.5 torr

E) 620 torr

Diff: 2

Section: 10.2

3) A U.S. Weather Bureau forecast cited the atmospheric pressure at sea level as having a value of 768.2 mm Hg. What would the value be in kPa?

(1 atm = 101325 Pa = 760 torr = 760 mm Hg = 1.01325 bar = 1013.25 mb)

A) 778.4 kPa

B) 102.4 kPa

C) 100.3 kPa

D) 91.62 kPa

E) 1024 kPa

Diff: 2

Section: 10.2

4) The barometric pressure in a cavern was measured using a mercury barometer. A value of 74.2 cm of Hg was obtained. How many atmospheres is this?

A) 5.64 atm

B) 9.76 atm

C) 1.024 atm

D) 0.976 atm

E) 0.0976 atm

Diff: 2

Section: 10.2

5) A pressure measured using a mercury barometer results in a mercury column height of 356 mm. What column height of water would be needed to measure the same pressure? The density of mercury is 13.6 g/cm3; the density of water is 1.00 g/cm3.

A) 52 cm

B) 484 cm

C) 26.18 mm

D) 38.2 cm

E) 207 cm

Diff: 2

Section: 10.2

6) An open-end mercury manometer was constructed from a U-shaped tube and connected to a gas container. In a particular measurement, the level in the end of the tube connected to the gas container measured 76.2 cm above the U-neck, while the level in the open end (to the atmosphere) was 23.8 cm above the U-neck. The outside air pressure in the laboratory was measured as 754 torr. What is the pressure in the gas container?

A) 230 torr

B) 236 torr

C) 702 torr

D) 806 torr

E) 1278 torr

Diff: 2

Section: 10.2

7) An open-end mercury manometer was constructed from a U-shaped tube and connected to a gas container. In a particular measurement, the level in the end of the tube connected to the gas container measured 82.8 cm above the U-neck, while the level in the open end (to the atmosphere) was 17.2 cm above the U-neck. The outside air pressure in the laboratory was measured as 764 torr. What is the pressure in the gas container?

A) 108 torr

B) 159 torr

C) 698 torr

D) 830 torr

E) 1420 torr

Diff: 2

Section: 10.2

8) An open-end mercury manometer was constructed from a U-shaped tube and connected to a gas container. In a particular measurement, the level in the end of the tube connected to the gas container measured 62.0 cm above the U-neck, while the level in the open end (to the atmosphere) was 23.8 cm above the U-neck. The outside air pressure in the laboratory was measured as 772 torr. What is the pressure in the gas container?

A) 206 torr

B) 390 torr

C) 734 torr

D) 810 torr

E) 1154 torr

Diff: 2

Section: 10.2

9) A closed-end mercury manometer is being used to measure gas pressure in a container designed for studies on the gases. In a particular experiment, the mercury in the closed end of this manometer was 622 mm above the U-neck, while the level in the end connected to the container was measured as 252 mm above the U-neck. What is the pressure, in torr, in the gas collection manifold?

A) 206 torr

B) 308 torr

C) 370 torr

D) 390 torr

E) 1130 torr

Diff: 2

Section: 10.2

10) A real gas behaves most nearly like an ideal gas under conditions of

A) low temperature and high pressure.

B) low temperature and low pressure.

C) high temperature and low pressure.

D) high temperature and high pressure.

E) any temperature and pressure (low or high) as long as it remains in the gaseous state.

Diff: 2

Section: 10.3

11) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 6.414 liters when the pressure was 850 torr and the temperature was 27.2 °C. The pressure was readjusted to 4423 torr by moving the piston. What is the volume occupied by the sample under the new conditions if the temperature remained constant throughout?

A) 0.837 L

B) 0.937 L

C) 1.23 L

D) 1.53 L

E) 3.34 L

Diff: 1

Section: 10.3

12) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 4.626 liters when the pressure was 0.983 atm and the temperature was 27.2°C. The pressure was readjusted to 1.388 atm by moving the piston. What is the volume occupied by the sample under the new conditions if the temperature remained constant throughout?

A) 0.303 L

B) 3.28 L

C) 4.68 L

D) 6.35 L

E) 6.49 L

Diff: 2

Section: 10.3

13) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 2.86 cubic meters when the pressure was 9.85 × 104 Pa and the temperature was 25.8°C. The pressure was readjusted to 1.08 × 105 Pa by moving the piston. What is the volume occupied by the sample under the new conditions if the temperature remained constant throughout?

A) 0.383 m3

B) 2.61 m3

C) 3.14 m3

D) 8.23 m3

E) 26.1 m3

Diff: 2

Section: 10.3

14) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 1.40 liters when the pressure was 762 torr and the temperature was 26.9°C. The volume of the system was readjusted to 0.150 liters by moving the piston. What is the pressure exerted on the surface of the piston by the gas if the temperature of the system remained constant?

A) 13.4 atm

B) 883 atm

C) 918 atm

D) 1020 atm

E) 9.36 atm

Diff: 2

Section: 10.3

15) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 8.50 liters when the pressure was 9.85 × 104 Pa and the temperature was 24.9°C. The volume of the system was readjusted to 11.6 liters by moving the piston. What is the pressure exerted on the surface of the piston by the gas if the temperature of the system remained constant?

A) 7.22 Pa

B) 2.66 × 104 Pa

C) 7.22 × 104 Pa

D) 1.34 × 105 Pa

E) 3.90 × 105 Pa

Diff: 2

Section: 10.3

16) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 11.60 liters when the pressure was 9.97 × 104 Pa and the temperature was 24.9°C. The volume of the system was readjusted to 8.50 liters by moving the piston. What is the pressure exerted on the surface of the piston by the gas if the temperature of the system remained constant?

A) 1.011 × 103 Pa

B) 1.36 × 105 Pa

C) 7.31 × 104 Pa

D) 1.01 × 105 Pa

E) 9.83 × 104 Pa

Diff: 2

Section: 10.3

17) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 1.40 liters when the pressure was 768 torr and the temperature was 26.9 °C. The volume of the system was readjusted to 2.16 liters by changing the temperature while the load on the piston was kept constant to keep the pressure in the system constant. What is the temperature in the system at this point?

A) 41.5 °C

B) 41.9 °C

C) 189.8 °C

D) 194.7 °C

E) 288.6 °C

Diff: 2

Section: 10.3

18) A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 0.00256 cubic meters when the pressure was 1.20 × 105 Pa and the temperature was 77.8 °C. The volume of the system was readjusted to 1.88 liters by changing the temperature while the load on the piston was kept constant to keep the pressure in the system constant. What is the temperature in the system at this point?

A) −15.4 °C

B) +36.1 °C

C) +57.1 °C

D) +204.7 °C

E) +571 °C

Diff: 2

Section: 10.3

19) A cylinder fitted with a movable piston and filled with a gas has a volume of 188.5 mL at 26.7 °C when the applied pressure is 755.2 torr. The temperature of the oil bath surrounding the cylinder was increased to 165.2 °C and the load on the piston was changed. Careful measurement now gave a value of 210.5 mL for the volume. What is the final pressure in the system?

A) 462.6 torr

B) 576.9 torr

C) 715.5 torr

D) 988.6 torr

E) 1233 torr

Diff: 2

Section: 10.3

20) A cylinder fitted with a movable piston and filled with a gas has a volume of 16.44 liters at 22.4 °C when the applied pressure is 772.2 torr. The temperature of the oil bath surrounding it was increased to 184.4 °C and the load on the piston was changed. Careful measurement now gave a value of 16.60 liters for the volume. What is the final pressure in the system?

A) 494.0 torr

B) 503.6 torr

C) 1184 torr

D) 1207 torr

E) 6295 torr

Diff: 2

Section: 10.3

21) The standard reference conditions for gases has the values

A) temperature: 0.00 K; pressure: 1.000 standard atmosphere.

B) temperature: 0.00 °C; pressure: 1.000 standard atmosphere.

C) temperature: 273.15 K; pressure: 1.000 Pascal.

D) temperature: 298.15 K; pressure: 1.000 standard atmosphere.

E) temperature: 298.15 K; pressure: 1.000 Pascal.

Diff: 2

Section: 10.4

22) A sample of an unknown gas was isolated in a gas containment bulb on a manifold used in this type of work. The volume of the bulb was 1.425 liters. The temperature was 25.40 °C, and the manifold pressure was 583.0 torr. What volume would this gas sample occupy at STP?

A) 1.000 L

B) 1.195 L

C) 1.700 L

D) 2.030 L

E) 11.76 L

Diff: 1

Section: 10.4

23) A sample of a gas was isolated in a gas containment bulb on a manifold used in this type work. The volume of the bulb was 1.524 liters. The temperature was 28.40 °C, and the manifold pressure was 637.6 torr. What volume would this gas sample occupy at STP?

A) 1.069 L

B) 1.158 L

C) 1.412 L

D) 1.645 L

E) 2.006 L

Diff: 2

Section: 10.4

24) A sample of a gas was isolated in a gas containment chamber. The volume of the chamber was 1.245 cubic meters. The temperature was 22.80 °C, and the pressure was 88.26 kPa. What volume would this gas sample occupy at STP?

A) 1.001 m3

B) 1.009 m3

C) 1.175 m3

D) 1.319 m3

E) 1.549 m3

Diff: 2

Section: 10.4

25) A sample of a gas occupies a volume of 1.820 liters at STP. What pressure would it exert if transferred to a 1.425-liter vessel in which its temperature was raised to 25.2 °C?

A) 0.7168 atm

B) 0.8552 atm

C) 1.169 atm

D) 1.278 atm

E) 1.395 atm

Diff: 2

Section: 10.4

26) A sample of a gas occupies a volume of 185.5 mL at STP. What pressure would it exert if it was transferred to a gas bulb with a volume of 255.5 mL in which the temperature is maintained at 34.5 °C?

A) 489.9 torr

B) 569.4 torr

C) 621.5 torr

D) 929.4 torr

E) 1179 torr

Diff: 2

Section: 10.4

27) A sample of a gas occupies a volume of 185.5 mL at 20.2 °C and 0.945 atm. What pressure would it exert if it was transferred to a gas bulb with a volume of 255.5 mL in which the temperature is increased to 34.5 °C?

A) 1.39 torr

B) 547 torr

C) 649 torr

D) 891 torr

E) 1056 torr

Diff: 2

Section: 10.4

28) A sample of a gas occupies a volume of 1.462 liters at STP. It was placed in a different vessel in which the pressure was measured as 722.5 torr when the temperature was 25.20 °C. What is the volume of this new vessel?

A) 1.272 liters

B) 1.408 liters

C) 1.518 liters

D) 1.539 liters

E) 1.680 liters

Diff: 2

Section: 10.4

29) A sample of a gas occupies a volume of 1.462 liters at 30.00°C and 1.250 atm. It was placed in a different vessel in which the pressure was measured as 722.5 torr when the temperature was 25.20 °C. What is the volume of this new vessel?

A) 2.125 × 10−3 liters

B) 0.5285 liters

C) 1.892 liters

D) 1.615 liters

E) 470.7 liters

Diff: 2

Section: 10.4

30) A sample of a gas occupies a volume of 1.462 liters at STP. It was placed in a different vessel with a volume of 1.601 liters, in which the pressure was measured as 722.0 torr. What is its temperature in this new vessel?

A) −32.6 °C

B) −10.6 °C

C) +11.0 °C

D) +37.0 °C

E) +41.7 °C

Diff: 2

Section: 10.4

31) A sample of a gas occupies a volume of 1.246 liters at STP. It was placed in a different vessel with a volume of 1.410 liters, in which the pressure was measured as 108.5 kPa. What is its temperature in this new vessel?

A) −47.7 °C

B) −14.7 °C

C) +15.5 °C

D) +57.8 °C

E) +88.1 °C

Diff: 2

Section: 10.4

32) A sample of a gas occupies a volume of 122.4 mL at STP. It was placed in a different vessel with a volume of 164.2 mL in which the pressure was measured as 0.9915 atm. What is its temperature in this new vessel?

A) 90.2 °C

B) 96.4 °C

C) 123.4 °C

D) 201.9 °C

E) 205.4 °C

Diff: 2

Section: 10.4

33) A sample of a gas occupies a volume of 122.4 mL at 25°C and 1.45 atm. It was placed in a different vessel with a volume of 164.2 mL, in which the pressure was measured as 0.9915 atm. What is its temperature in this new vessel?

A) −176.0 °C

B) 0.346 °C

C) 176 °C

D) 22.9 °C

E) 1155.8 °C

Diff: 2

Section: 10.4

34) How many liters of pure oxygen gas, measured at STP, are required for the complete combustion of 11.2 L of methane gas (CH4), also measured at STP?

A) 11.2 L

B) 16.8 L

C) 22.4 L

D) 32.0 L

E) 33.6 L

Diff: 2

Section: 10.4

35) How many liters of pure oxygen gas, measured at STP, are required for the complete combustion of 16.6 L of ethylene gas (C2H4), also measured at STP?

A) 16.6 L

B) 22.4 L

C) 24.9 L

D) 33.2 L

E) 49.8 L

Diff: 2

Section: 10.4

36) A chemical reaction is shown: 2NO(g) + O2(g) → 2NO2(g). How many liters of pure oxygen gas, measured at STP, are required for the complete reaction with 8.82 L of NO(g), also measured at STP?

A) 4.41 L

B) 8.82 L

C) 11.2 L

D) 17.6 L

E) 22.4 L

Diff: 2

Section: 10.4

37) How many liters of pure oxygen gas, measured at 45.2 °C and 104.0 kPa, are required for the complete combustion of 5.60 L of acetaldehyde gas (C2H4O), measured under the same conditions of temperature and pressure?

A) 4.93 L

B) 12.3 L

C) 14.0 L

D) 14.8 L

E) 16.8 L

Diff: 2

Section: 10.4

38) A gas sample weighing 3.78 grams occupies a volume of 2.28 L at STP. What is the molecular mass of the sample?

A) 8.54 g mol −1

B) 13.5 g mol −1

C) 37.1 g mol −1

D) 51.1 g mol −1

E) 193 g mol −1

Diff: 2

Section: 10.5

39) Two moles of carbon dioxide gas at 35°C are heated to 250°C in a container while the volume is kept constant. The density of the gas in the container will

A) increase.

B) decrease.

C) remain the same.

D) reach a value of zero.

E) There is not enough information given to correctly answer this question.

Diff: 2

Section: 10.5

40) Which of the following gases will have the greatest density at the same specified temperature and pressure?

A) He

B) SF6

C) CO2

D) CH4

E) CFH3

Diff: 1

Section: 10.5

41) A gas sample weighing 4.48 grams occupies a volume of 2.15 L at STP. What is the molecular mass of the sample?

A) 9.63 g mol −1

B) 10.8 g mol −1

C) 46.7 g mol −1

D) 113 g mol −1

E) 216 g mol −1

Diff: 2

Section: 10.5

42) A gas container has a volume of 5.604 L. It contains carbon monoxide gas at 28.2 °C. The pressure in the container is 868.5 torr. If the gas behaves as an ideal gas, how much should the gas sample weigh?

A) 0.765 g

B) 1.28 g

C) 5.55 g

D) 6.28 g

E) 7.25 g

Diff: 2

Section: 10.5

43) What volume would 11.2 g of a gaseous compound occupy at STP if its molecular weight is 44.0 g/mole and it behaves as an ideal gas?

A) 5.71 liters

B) 11.0 liters

C) 11.2 liters

D) 22.4 liters

E) 44.0 liters

Diff: 2

Section: 10.5

44) What volume would 11.2 g of a gaseous compound occupy at STP if its molecular weight is 56.0 g/mole and it behaves as an ideal gas?

A) 4.48 liters

B) 5.60 liters

C) 11.2 liters

D) 44.8 liters

E) 110 liters

Diff: 2

Section: 10.5

45) A gas sample occupies a volume of 18.86 liters when the temperature is 35.2 °C and the pressure is 735.5 torr. How many moles of gas are in the sample?

A) 0.721 moles

B) 0.770 moles

C) 1.29 moles

D) 5.41 moles

E) 6.31 moles

Diff: 2

Section: 10.5

46) A gas sample containing 0.2820 moles of a compound is trapped in a vessel at a temperature of 25.2 °C and a pressure of 642.0 torr. What is the volume of the vessel?

A) 0.0107 liters

B) 0.690 liters

C) 8.18 liters

D) 12.7 liters

E) 92.9 liters

Diff: 2

Section: 10.5

47) A gas sample containing 0.3250 moles of a compound is confined in a glass vessel at a temperature of 28.4 °C and a pressure of 846 torr. What is the volume of the vessel?

A) 7.23 × 10−3 m3

B) 737 × 10−3 m3

C) 72.2 × 10−3 m3

D) 77.2 × 10−3 m3

E) 7.8 × 10−3 m3

Diff: 2

Section: 10.5

48) A gas sample containing 0.2820 moles of a compound is trapped in a 2.461 liter vessel at a temperature of 25.2 °C. What is the pressure in the vessel if it behaves as an ideal gas?

A) 0.236 atm

B) 0.374 atm

C) 2.81 atm

D) 4.11 atm

E) 24.0 atm

Diff: 2

Section: 10.5

49) A gas sample containing 0.3525 moles of a compound is trapped in a 2.641 liter vessel at a temperature of 28.4 °C. What is the pressure in the vessel if the gas behaves as an ideal gas?

A) 334.6 torr

B) 2007 torr

C) 2510 torr

D) 2513 torr

E) 2694 torr

Diff: 2

Section: 10.5

50) A gas sample containing 0.3250 moles of a compound is trapped in a chamber with a volume of 2.460 liters. If the temperature of the gas is 26.8 °C, what is its pressure? Assume the gas exhibits ideal gas behavior.

A) 220.8 torr

B) 2300 torr

C) 2471 torr

D) 2670 torr

E) 24.3 × 103 torr

Diff: 2

Section: 10.5

51) A gas sample occupies a volume of 1.66 L when the temperature is 150.0 °C and the pressure is 842 torr. How many molecules are in the sample?

A) 1.52 × 1022

B) 2.60 × 1022

C) 3.19 × 1022

D) 9.01 × 1022

E) 9.42 × 1021

Diff: 2

Section: 10.5

52) A gas sample occupies a volume of 1.446 L when the temperature is 185.0 °C and the pressure is 624 torr. How many molecules are in the sample?

A) 1.90 × 1022

B) 2.82 × 1022

C) 4.71 × 1022

D) 9.10 × 1021

E) 9.10 × 1022

Diff: 2

Section: 10.5

53) A gas sample occupies a volume of 1.264 L when the temperature is 168.0 °C and the pressure is 946.6 torr. How many molecules are in the sample?

A) 2.07 × 1022

B) 2.62 × 1022

C) 2.65 × 1023

D) 2.65 × 1024

E) 6.88 × 1022

Diff: 2

Section: 10.5

54) A student doing a laboratory study on determination of molecular mass of gases obtained the following data for one of his unknowns: 6.155 grams of the gas occupied a volume of 1484 mL when its temperature was 27.3 °C and its pressure was 747.2 torr. Calculate the molecular mass of the gas, assuming ideal gas behavior.

A) 13.87 g mol −1

B) 30.40 g mol −1

C) 104.0 g mol −1

D) 106.7 g mol −1

E) 110.0 g mol −1

Diff: 2

Section: 10.5

55) A gas container has a volume of 6.504 L. When filled with propane gas, C3H8, at 28.3 °C, the pressure is 486.3 torr. How much should the gas sample weigh?

A) 4.67 g

B) 7.41 g

C) 7.52 g

D) 18.1 g

E) 263 g

Diff: 2

Section: 10.5

56) A chemical reaction, A(s) → B(s) + C(g), occurs when substance A is strongly heated. The molecular mass of the gaseous product was to be determined from the following experimental data:

Mass of A before reaction starts: 4.962 g

Mass of A after reaction finishes: 0 g

Mass of residue (B) after cooling and weighing when no more gas was evolved: 3.684 g

When all of the gas C evolved was collected and stored in a 658.5 mL glass vessel at 30.4 °C, the gas exerted a pressure of 748.5 torr.

From this data, determine the apparent molecular mass of C, assuming it behaves as an ideal gas.

A) 6.54 g mol −1

B) 47.5 g mol −1

C) 49.1 g mol −1

D) 71.6 g mol −1

E) 141 g mol −1

Diff: 2

Section: 10.5

57) A chemical reaction, A(s) → B(s) + C(g), occurs when substance A is strongly heated. The molecular mass of the gaseous product was to be determined from the following experimental data:

Mass of A before reaction starts: 5.467 g

Mass of A after reaction finishes: 0 g

Mass of residue (B) after cooling and weighing when no more gas was evolved: 4.762 g

When all of the gas C evolved was collected and stored in an 875.0 mL glass vessel at 30.50 °C, the gas exerted a pressure of 346.0 torr.

From this data, determine the apparent molecular mass of C assuming it behaves as an ideal gas.

A) 4.43 g mol −-1

B) 0.0579 g mol −1

C) 17.27 g mol −1

D) 18.35 g mol −1

E) 44.01 g mol −1

Diff: 2

Section: 10.5

58) What is the mole fraction of hydrogen in a gaseous mixture that consists of 8.00 g of hydrogen and 12.00 g of neon in a 3.50-liter container maintained at 35.20 °C?

A) 0.150

B) 0.400

C) 0.660

D) 0.870

E) 0.930

Diff: 2

Section: 10.6

59) A sealed glass container contains 0.2 moles of O2 gas and 0.3 moles of N2 gas. If the total pressure inside the container is 0.75 atm what is the partial pressure of O2 in the glass container?

A) 0.20 atm

B) 0.30 atm

C) 0.50 atm

D) 0.75 atm

E) 0.45 atm

Diff: 1

Section: 10.6

60) A sealed glass container contains 0.8 moles of O2 gas and 0.4 moles of N2 gas. If the total pressure inside the container is 0.90 atm, what is the partial pressure of O2 in the

glass container?

A) 0.40 atm

B) 0.90 atm

C) 0.60 atm

D) 0.67 atm

E) 0.30 atm

Diff: 1

Section: 10.6

61) A sealed glass container contains partial pressures of 0.24 atm O2 gas and 0.46 atm H2 gas. What is the mole fraction of H2 in the glass container?

A) 0.70

B) 0.24

C) 0.46

D) 0.66

E) 0.34

Diff: 1

Section: 10.6

62) A sealed glass container contains partial pressures of 0.80 atm CO2 gas and 0.35 atm N2 gas. What is the mole fraction of N2 in the glass container?

A) 0.35

B) 1.15

C) 0.70

D) 0.80

E) 0.30

Diff: 1

Section: 10.6

63) A sealed glass container contains partial pressures of 0.24 atm O2, 0.45 atm CO2, 0.64 atm N2, and 0.46 atm H2 gas in a 3.5 L container at 30.5°C. What is the total pressure exerted on the walls of the container?

A) 1.79 atm

B) 6.27 atm

C) 0.51 atm

D) 1902 atm

E) 0.64 atm

Diff: 1

Section: 10.6

64) A mixture of 5.00 moles of neon and 3.00 moles of nitrogen occupy a volume of 36.0 L in a vessel where the total pressure is 6.00 atm. The partial pressure of the neon in the container is

A) 0.375 atm.

B) 0.625 atm.

C) 0.833 atm.

D) 3.75 atm.

E) 43.2 atm.

Diff: 1

Section: 10.6

65) What is the total pressure exerted by a gaseous mixture that consists of 8.00 g of methane and 12.00 g of ethane, C2H6, in a 3.50 L container maintained at 35.20 °C?

A) 0.400 atm

B) 0.741 atm

C) 3.13 atm

D) 6.49 atm

E) 16.5 atm

Diff: 2

Section: 10.6

66) What is the total pressure exerted by a gaseous mixture that consists of 1.00 g of hydrogen and 8.00 g of neon in a 2.80 L container maintained at 44.10 °C?

A) 1.15 atm

B) 3.77 atm

C) 3.95 atm

D) 8.30 atm

E) 12.9 atm

Diff: 2

Section: 10.6

67) What is the total pressure exerted by a gaseous mixture that consists of 8.00 g of methane and 8.00 g of ethane (C2H6) in a 3.50-liter container maintained at 35.20 °C?

A) 0.286 atm

B) 0.631 atm

C) 2.51 atm

D) 5.53 atm

E) 30.7 atm

Diff: 2

Section: 10.6

68) What is the mole fraction of methane in a gaseous mixture that consists of 8.00 g of methane and 12.00 g of ethane (C2H6) in a 3.50 L container maintained at 35.20 °C?

A) 0.400

B) 0.434

C) 0.556

D) 0.800

E) 1.50

Diff: 2

Section: 10.6

69) A sample of oxygen gas was collected by displacement of water in a gas collection apparatus. The total pressure in the collection vessel was 744.2 torr, the temperature was 26.0 °C, and the vessel contained 522 mL of the collected gas. How many moles of oxygen were collected? (At 26.0 °C, the vapor pressure of water is 25.2 torr.)

A) 0.0201 moles

B) 0.0215 moles

C) 0.0842 moles

D) 0.151 moles

E) 0.231 moles

Diff: 2

Section: 10.6

70) A sample of hydrogen gas was collected by displacement of water in a large gas buret. The total pressure in the buret was measured as 764.2 torr, the temperature was 23.0 °C, and the buret contained 511 mL of the collected gas. How many moles of hydrogen were collected?

(At 23.0 °C, the vapor pressure of water is 21.1 torr.)

A) 0.0191 moles

B) 0.0206 moles

C) 0.0211 moles

D) 0.0215 moles

E) 0.0217 moles

Diff: 2

Section: 10.6

71) A sample of nitrogen gas was collected by displacement of water in a gas collection flask. The total pressure in the collection flask was measured as 754.2 torr, the temperature was

20.0 °C, and the measured volume of gas collected was 516 mL. How many grams should the nitrogen weigh? (At 20.0 °C, the vapor pressure of water is 17.5 torr.)

A) 0.291 g

B) 0.305 g

C) 0.582 g

D) 0.596 g

E) 0.610 g

Diff: 2

Section: 10.6

72) A sample of methane gas (CH4) was collected by displacement of water in a gas collection flask. The total pressure in the collection flask was measured as 758.2 torr, the temperature was 25.0 °C, and the measured volume of gas in the flask was 526.0 mL. How many grams should the methane weigh? (At 25.0 °C, the vapor pressure of water is 23.8 torr.)

A) 0.01080 g

B) 0.3333 g

C) 0.3441 g

D) 0.3549 g

E) 8.438 g

Diff: 2

Section: 10.6

73) A gas mixture contains 5.00 liters of a mixture of nitrogen gas and oxygen gas. The total pressure in the tank is 38.6 atm when the temperature is 25.0 °C, and the mole fraction of oxygen is 0.400. How much does the oxygen in the tank weigh?

A) 50.5 g

B) 88.3 g

C) 101 g

D) 126 g

E) 3.01 × 102 g

Diff: 2

Section: 10.6

74) A gas mixture is 50.00% helium and 50.00% methane, by volume. What is the mole fraction of methane in the mixture?

A) 0.1997

B) 0.2005

C) 0.2500

D) 0.5000

E) 0.8003

Diff: 2

Section: 10.6

75) A gaseous substance effuses twice as rapidly as sulfur dioxide gas. The gas could be

A) carbon monoxide.

B) helium.

C) hydrogen.

D) methane.

E) oxygen.

Diff: 2

Section: 10.6

76) The average speed at which a nitrogen molecule effuses at 30.0 °C is 480 meters per second. The average speed at which a butene molecule (C4H8) effuses at this same temperature should therefore be

A) 120 m s−1.

B) 170 m s−1.

C) 240 m s−1.

D) 339 m s−1.

E) 679 m s−1.

Diff: 2

Section: 10.6

77) The average speed at which a methane molecule effuses at 28.5 °C is 631 meters per second. The average speed at which krypton gas effuses at this same temperature should therefore be

A) 121 m s−1.

B) 276 m s−1.

C) 315 m s−1.

D) 417 m s−1.

E) 631 m s−1.

Diff: 2

Section: 10.6

78) 1.000 atm of dry nitrogen, placed in a container having a pinhole opening in its side, leaks from the container 2.28 times faster than does 1.000 atm of an unknown gas placed in this same apparatus. Which of the following species could be the unknown gas?

A) NH3

B) C4H10

C) SF6

D) UF6

E) Rn

Diff: 2

Section: 10.6

79) The average speed at which a methane molecule effuses at 28.5 °C is 631 meters per second. The average speed at which an argon molecule effuses at this same temperature should therefore be

A) 253 m s−1.

B) 315 m s−1.

C) 400 m s−1.

D) 502 m s−1.

E) 631 m s−1.

Diff: 2

Section: 10.6

80) According to the kinetic theory of gases, the average kinetic energy of the gas particles in a gas sample is directly proportional to the

A) pressure.

B) volume.

C) temperature.

D) molar mass.

E) number of moles of gas.

Diff: 1

Section: 10.7

81) If container "A" is occupied by 1.00 mole of oxygen gas while container "B" is occupied by 20.0 grams of nitrogen gas and both containers are maintained at 0.00 °C and 650 torr then,

A) container "B" must be larger than container "A".

B) the average speed of the molecules in container "A" is greater than that of the molecules in container "B".

C) container "A" must have a volume of 22.4 L.

D) the average kinetic energy of the molecules in "A" is equal to the average kinetic energy of the molecules in "B".

E) the number of atoms in container "B" is greater than the number of atoms in container "A".

Diff: 1

Section: 10.7

82) If container "A" is occupied by 1.00 mole of oxygen gas while container "B" is occupied by 20.0 grams of nitrogen gas and both containers are maintained at 0.00 °C and 650 torr then,

A) container "B" must be larger than container "A".

B) the average speed of the molecules in container "B" is greater than that of the molecules in container "A".

C) container "A" must have a volume of 22.4 L.

D) the average kinetic energy of the molecules in "B" is greater than the average kinetic energy of the molecules in "A".

E) the number of atoms in container "B" is greater than the number of atoms in container "A".

Diff: 1

Section: 10.7

83) Which of the following is a condition that must be met for a gas to be considered as "ideal"?

A) The gas must contain carbon.

B) The gas molecule must have no interactive forces between themselves.

C) The gas sample must not contain water vapor.

D) The gas sample must be enclosed in a large container.

E) The gas must have a small molar mass.

Diff: 1

Section: 10.8

84) The van der Waals equation of state for a real gas is

= nRT

In this equation, the van der Waals constant, a, represents a correction for

A) a positive deviation in the measured value of P from that for an ideal gas due to the finite volume of space occupied by molecules of a real gas.

B) a negative deviation in the measured value of P from that for an ideal gas due to the finite volume of space occupied by molecules of a real gas.

C) a positive deviation in the measured value of P from that for an ideal gas due to the attractive forces between the molecules of a real gas.

D) a negative deviation in the measured value of P from that for an ideal gas due to the attractive forces between the molecules of a real gas.

E) a positive deviation in the measured value of P from that for an ideal gas due to the finite mass of the molecules of a real gas.

Diff: 1

Section: 10.8

85) The van der Waals equation of state for a real gas is

= nRT

In this equation, the van der Waals constant, b, represents a correction for

A) a positive deviation in the measured value of V from that for an ideal gas due to the finite volume of space occupied by molecules of a real gas.

B) a negative deviation in the measured value of V from that for an ideal gas due

to the finite volume of space occupied by molecules of a real gas.

C) a positive deviation in the measured value of V from that for an ideal gas due to the attractive forces between the molecules of a real gas.

D) a negative deviation in the measured value of V from that for an ideal gas due to the attractive forces between the molecules of a real gas.

E) a positive deviation in the measured value of V from that for an ideal gas due to the finite mass of the molecules of a real gas.

Diff: 1

Section: 10.8

86) For a substance that remains a gas under all the conditions listed, deviations from the expected values found using the ideal gas law would be the greatest at

A) 100°C and 1.0 atm.

B) 0°C and 1.0 atm.

C) −100°C and 1.0 atm.

D) −100°C and 3.0 atm.

E) 100°C and 3.0 atm.

Diff: 1

Section: 10.8

87) The van der Waals equation of state for a real gas is

= nRT

At what pressure will 1.00 mole of CH4 be in a 10.0 L container at 298 K, assuming that CH4 is a real gas?

(van der Waals constants for CH4 are a = 2.253 L2 atm mol−2, b = 0.04278 L mol−1)

A) 2.43 atm

B) 2.28 atm

C) 2.51 atm

D) 24.5 atm

E) 0.440 atm

Diff: 2

Section: 10.8

88) The van der Waals equation of state for a real gas is

= nRT

At what pressure will 1.00 mole of NH3 be in a 10.00 L container at 298 K, assuming NH3 is a real gas?

(van der Waals constants for NH3 are a = 4.170 L2 atm mol−2, b = 0.03707 L mol−1)

A) 2.03 atm

B) 20.3 atm

C) 2.41 atm

D) 24.1 atm

E) 2.47 atm

Diff: 2

Section: 10.8

89) Air pressure at the top of a very high mountain was measured as 250 mm Hg. What is the pressure?

Diff: 1

Section: 10.2

90) A Torricelli barometer containing mercury is placed in a chamber used for training astronauts. The chamber is maintained at an air pressure of 1.20 × 104 Pa. What height should the Torricelli barometer in the chamber register?

Diff: 1

Section: 10.2

91) A certain gas is applying a force of 2.5 N to the surface of a piston. This surface on the piston has an area of 0.75 m2. What is the pressure being applied to the surface of the piston?

Hint: 1 Pa = 1 N/m2.

Diff: 1

Section: 10.2

92) What would a pressure reading of 565 torr be in units of atmospheres?

Diff: 1

Section: 10.2

93) A gas sample is attached to a closed end mercury manometer. The mercury on the end of the manometer attached to the gas sample is 170 mm lower than the mercury on the closed end. What is the pressure of the gas in the sample?

Diff: 1

Section: 10.2

94) What is the gas pressure of the gas sample hooked up to the mercury manometer shown below if the atmospheric pressure is 749 mmHg?

Diff: 1

Section: 10.2

95) What is the gas pressure of the gas sample hooked up to the mercury manometer shown below if the atmospheric pressure is 756 mmHg?

Diff: 1

Section: 10.2

96) A pressure that will support a column of Hg to a height of 263 mm would support a column of water to what height? The density of mercury is 13.6 g/cm3; the density of water is 1.00 g/cm3.

Diff: 1

Section: 10.2

97) A sample of nitrogen gas occupies 2.10 L at 25°C. If the gas expands to a volume of 4.20 L in a container that can contract or expand at a constant pressure, the final temperature would be ________°C.

Diff: 1

Section: 10.3

98) A sample of hydrogen gas is placed in a solid steel chamber (rigid walls) with a volume of 4.25 L. The sample starts at a temperature of 25.0°C and pressure of 1.00 atm. What would be the final pressure if gas sample is heated to a new temperature of 100°C?

Diff: 1

Section: 10.3

99) A sample of hydrogen gas is placed in a solid steel chamber (rigid walls) with a volume of 4.25 L. The sample starts at a temperature of 25.0°C and pressure of 1.00 atm. What would be the final pressure if gas sample is cooled to a new temperature of –25°C?

Diff: 2

Section: 10.3

100) On a spring morning (20°C) you fill your tires to a pressure of 50 psi (lb. in.2). As you ride along, the tire heats up to 50°C from the friction on the road. What is the pressure in your tires after your drive?

Diff: 2

Section: 10.3

101) A gas-filled balloon on a warm day (30°C) filled with a volume of 12.5 L at 0.95 atm is allowed to rise to the stratosphere where the temperature is –5°C and the external pressure is 1.0 millibar. What is the final volume of the balloon?

Diff: 2

Section: 10.3

102) A small bubble rises from the bottom of a lake, where the temperature and pressure are 6.0°C and 2.80 atm, to the surface of the water. The temperature of the water at the surface is 23.5°C and the atmospheric pressure is 1.05 atm. Based on this information, if the volume of the bubble is 1.8 mL at the bottom of the lake, then the volume of the bubble at the surface would be ________.

Diff: 2

Section: 10.3

103) Calculate the volume occupied by 25.4 g of methane gas (CH4) at 1.63 atm and 35°C?

Diff: 1

Section: 10.4

104) A gas sample has a volume of 12.42 L at STP. How many moles of gas are in the sample?

Diff: 1

Section: 10.4

105) What are the values for standard temperature and pressure (STP) in units of Kelvin and atmospheres?

Diff: 1

Section: 10.4

106) What are the values for standard temperature and pressure (STP) in units of °C and mmHg?

Diff: 1

Section: 10.4

107) 0.950 mole of hydrogen gas has a volume of 2.00 L at a certain temperature and pressure. What volume would 0.125 moles of this gas at the same temperature and pressure occupy?

Diff: 1

Section: 10.4

108) 8.25 g of liquid hexane (C6H14) is introduced into a 10.0 L vessel containing 12.75 atm of oxygen gas at 25°C and ignited, yielding carbon dioxide and water. If the vessel is then cooled to −10°C, what will be the gas pressure inside the vessel?

Hint: Consider the product states at the final temperature.

Diff: 3

Section: 10.4

109) A gas sample has a volume of 1424 liters at STP. How many moles of gas are there in the sample?

Diff: 2

Section: 10.5

110) A gas sample weighing 8.280 grams occupies a volume of 4.260 liters at STP. What is the molecular mass of the sample?

Diff: 2

Section: 10.5

111) A gas sample weighing 6.480 grams occupies a volume of 3.550 liters at STP. What is the apparent molecular mass of the sample?

Diff: 2

Section: 10.5

112) How many liters of oxygen gas, measured at STP, are required for the complete combustion of 6.01 grams of pentane (C5H12)?

Diff: 2

Section: 10.5

113) Calculate the density of oxygen gas at 1.000 atm and 25.00 °C.

Diff: 2

Section: 10.5

114) A gaseous element has a density of 1.098 g L−1 when the temperature is 31.4 °C and the pressure is 744.5 torr. Which element best fits the description?

Diff: 2

Section: 10.5

115) A gaseous element has a density of 3.195 g L−1 when the temperature is 35.8 °C and the pressure is 734.6 torr. Which element best fits the description?

Diff: 2

Section: 10.5

116) Results of measurements on a gas to determine its molecular mass gave a value of 1.614 g L−1 for the density, at 27.2 °C and 749.4 torr. What is the molecular mass of the gas?

Diff: 2

Section: 10.5

117) A sample gas mixture occupies a volume of 1.446 liters when the temperature is 155.0 °C and the pressure is 714.8 torr. The mole fraction of methane in this sample is 0.2250. How many methane molecules are there in the sample?

Hint: Use the ideal gas law and dimensional analysis.

Diff: 3

Section: 10.5

118) A gas evolved during the fermentation of sugar was collected at 22.5°C and 715 mmHg. After purification its volume was found to be 21.0 L. How many moles of the purified gas were collected?

Diff: 1

Section: 10.5

119) Calculate the density of CO gas at 25°C and 1.75 atm pressure.

Diff: 2

Section: 10.5

120) Calculate the density of Br2 gas at 59.0°C and 2.00 atm pressure.

Diff: 2

Section: 10.5

121) Calculate the density, in g/L, of SF6 gas at 27.0°C and 1.00 atm pressure.

Diff: 2

Section: 10.5

122) The density of a gas sample was found to be 3.51 g/L. If the pressure of the sample was changed from 1.00 atm to 3.00 atm under constant temperature, what would be the new density of the sample?

Diff: 2

Section: 10.5

123) The density of a gas sample was found to be 3.51 g/L. If the volume of the sample was changed from 1.00 L to 0.20 L under constant temperature, what would be the new density of the sample?

Diff: 2

Section: 10.5

124) A 0.801 g sample of an unknown organic gas occupies 391 mL at 144°C and 950 mm Hg. The empirical formula of the compound was determined to be CH2. What is the molecular formula of the compound?

Hint: Apply the procedure for finding molecular formulas from Chapter 3.

Diff: 3

Section: 10.5

125) Equal masses of oxygen gas and HBr gas were placed in separate 1 L containers. If the gas samples are at the same temperature the oxygen sample will have a pressure that is ________ than the pressure of the HBr sample.

Diff: 2

Section: 10.5

126) Which will diffuse more rapidly, C3H8 (propane) or C4H10 (butane)? Why?

Diff: 2

Section: 10.6

127) Dry air contains 78% N2, 21% O2, and 1% Ar, by volume. What is the density of air at 900 mmHg and 10°C?

Diff: 2

Section: 10.6

128) Complete the following sentence: The molecules of different ideal gas samples have the same average kinetic energies at the same ________.

Diff: 2

Section: 10.7

129) At 298 K a sample of 2.00 moles of oxygen gas would have ________ average kinetic energy as 4.00 moles of neon gas.

Diff: 2

Section: 10.7

130) In order for a gas to be truly considered as "ideal," the molecules of the gas ________ interact with each other and ________ volume.

Diff: 1

Section: 10.8

131) Deviations from ideal gas behavior are greatest at ________.

Diff: 1

Section: 10.8

132) The product, (<, >, or =) for a real gas.

Diff: 1

Section: 10.8

133) The product, (<, >, or =) for a real gas.

Diff: 1

Section: 10.8

134) The gas N2O is used in whipped cream cans because it has ________, and it is a ________ molecule, which allows it to dissolve in the fats in the cream.

Diff: 1

Section: Chemistry Outside the Classroom 10.1

135) One pascal is a greater pressure than one torr.

Diff: 1

Section: 10.2

136) Air pressure at the bottom of a deep mine shaft is the same as the air pressure at the earth's surface next at the shaft opening.

Diff: 1

Section: 10.2

137) Gases can have negative volumes when the temperature falls below 0°C.

Diff: 1

Section: 10.2

138) A certain gas behaves as an ideal gas. At a temperature of 25.0 °C and a pressure of 760.0 torr, one mole of this gas occupies a volume of 22.4 liters.

Diff: 1

Section: 10.2

139) The density of a pure gaseous substance is inversely proportional to its absolute temperature.

Diff: 2

Section: 10.5

140) Three spheres having the same volume are filled with gases at the same temperature and pressure. The gas in sphere A is pure hydrogen, the gas in sphere B is pure carbon monoxide, but the gas in sphere C is a mixture of hydrogen and carbon monoxide. Based on the gas laws and molecular formulas, all three spheres contain the same number of atoms.

Diff: 2

Section: 10.5

141) Even though the average speed of a carbon monoxide molecule is greater than that of a sulfur dioxide molecule at the same temperature, the average kinetic energy of the molecules is the same.

Diff: 2

Section: 10.7

142) Whipped cream in a can contains whipped cream and carbon dioxide.

Diff: 1

Section: Chemistry Outside the Classroom 10.1

143) Why are canisters of spray paint and hairspray labeled, "Keep away from heat sources"?

Diff: 1

Section: 10.1

144) A properly designed Torricelli mercury barometer should be at least

A) 500 mm tall.

B) 800 mm tall.

C) 250 mm tall.

D) 100 mm tall.

E) 76 mm tall.

Diff: 1

Section: 10.2

145) Mountain climbers often need to take tanks of oxygen with them as they approach higher altitudes. Explain why this oxygen is needed by the climbers.

Diff: 1

Section: 10.2

146) In many science fiction movies, characters that are suddenly pulled into outer space experience phenomena such as their heads exploding or their eyes bulging. Provide a reasonable explanation based on the properties of gases for why movies speculate that this could happen, even though it is exaggerated?

Diff: 1

Section: 10.2

147) An open-end manometer constructed from a U-shaped tube was operated using an oil that has a density of 1.088 g mL−1. In a particular measurement, the level in the end connected to the gas vessel, on which the experiment was being conducted, measured 76.2 cm above the U-neck, while the level in the open end was 23.8 cm above the U-neck. The outside air pressure in the laboratory was measured as 754 torr. What is the pressure in the gas vessel?

Hint: The density of mercury is 13.533 g mL−1 at room temperature.

Diff: 3

Section: 10.2

148) An open-end manometer constructed from a U-shaped tube was operated using an oil that has a density of 1.164 g mL−1. In a particular measurement, the level in the end connected to the gas vessel, on which the experiment was being conducted, measured 82.8 cm above the U-neck, while the level in the open end was 17.2 cm above the U-neck. The outside air pressure in the laboratory was measured as 764 torr. What is the pressure in the gas vessel?

Hint: The density of mercury is 13.533 g mL−1 at room temperature.

Diff: 3

Section: 10.2

149) A closed-end manometer that utilizes an oil having a density of 0.820 g ml−1 is being used to measure gas pressure in a vessel designed for studies on the gaseous state. In a particular experiment, the oil in the closed end of this manometer was 62.2 cm above the U-neck, while the level in the end connected to the vessel was measured as 25.2 cm above the U-neck. What is the pressure, in atmospheres, of the gas?

Hint: The density of mercury is 13.533 g mL−1 at room temperature.

Diff: 3

Section: 10.2

150) A gas mixture is 50.00% helium and 50.00% methane, by volume. What is the percent, by weight, of methane in the mixture?

Diff: 2

Section: 10.4

151) A gaseous mixture is 20.00% argon, 25.00% nitrogen, 30.00% methane and 25.00% ethylene, C2H4 by weight. Calculate the percent, by volume, of methane in the mixture.

Hint: Consider the difference between mass and moles.

Diff: 3

Section: 10.4

152) People who live on the second floor of apartment buildings often save money on their home-heating costs. Based on the properties of gases, provide an explanation for this.

Diff: 2

Section: 10.5

153) A general chemistry student needs to heat a liquid. Not wanting to spill anything, he puts a stopper on the solution flask and then heats the solution to 220 °C. While working in another part of the lab, the student hears an explosion and rushes over to find his flask broken into dozens of pieces. What was the likely cause of the explosion?

Diff: 2

Section: 10.5

154) Why do a person's ears "pop" when changing altitude in an airplane?

Diff: 2

Section: 10.5

155) Five moles of oxygen gas are heated from 25°C to 100°C in a constant volume container. At this new temperature, the density of the oxygen gas will be ________ that at the initial temperature.

Diff: 1

Section: 10.5

156) Calculate the volume of hydrogen gas at 0°C and 2.00 atm that will be formed when 245 mL of 0.735 M HCl solution reacts with excess Mg to give hydrogen gas and aqueous magnesium chloride.

Diff: 2

Section: 10.5

157) In a gas mixture containing oxygen, neon, and argon, the mole fractions are:

Xoxygen = 0.250 Xneon = 0.500 Xargon = 0.250

If this mixture behaves as an ideal gas, what is the density of this mixture, in g/liter, at 37.0 °C and 765 torr? If someone gave a sample of the mix described above to a student and had them determine the molar mass of the "gas" without telling the student it was a mixture, what value should the student report?

Diff: 2

Section: 10.6

158) A piece of zinc is allowed to react with an excess quantity of sulfuric acid and the hydrogen gas produced is collected in a gas buret by displacement of water. Neglecting the effect of the vapor pressure of water on the system, calculate how many mg of zinc would generate 92.0 mL of the gas at a temperature of 25.0 °C and a pressure of 1.00 atm. ________

Hint: Find the moles of gas first.

Diff: 3

Section: 10.6

159) Individuals are often advised to put out flames if they "smell gas." In reality, people smell dimethyl sulfide ((CH3)2S) that is added to natural gas to give it a detectable odor; natural gas by itself is odorless. What chemical characteristic of methyl sulfide makes it better to use as a gas indicator compared with the more pleasant-smelling isoamyl acetate (C7H14O2), also known as oil of banana?

Diff: 2

Section: 10.6

160) During a chemical demonstration, a filled balloon is submerged in liquid nitrogen, an extremely cold material. As the balloon sits in the liquid nitrogen, it appears to deflate. However, when the balloon is removed from the nitrogen, it appears to fill again. What is happening to the gas inside the balloon that gives this visual result?

Diff: 2

Section: 10.7

161) Water vapor is a polar gas molecule. Because of this, it has fairly strong interactions with itself in the gas phase that can make it behave less like an ideal gas that other gases under similar conditions. What is the difference between the calculated pressures found using the ideal gas law and those found using the van der Waals gas equation for 1 mole of water vapor at −100°C in a 1.00 L container?

(van der Waals constants for water are a = 5.464 L2 atm mol−2, b = 0.03049 L mol−1)

Diff: 2

Section: 10.8

162) Explain how real gases differ from ideal gases on the molecular level.

Diff: 2

Section: 10.8

163) N2O is the gas found in aerosol cans of whipped cream. What is a similarity between N2O and CO2 that could make CO2 suitable for this use and why is N2O used anyway instead of CO2?

Diff: 2

Section: Chemistry Outside the Classroom 11.1

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