Chemistry: Matter and Change

Chapter 13: Gases

Chapter Test Practice

1
A 0.5-L container of nitrogen gas is heated under constant pressure to the boiling point of water. What is its new volume?
A)0.5 L
B)0.64 L
C)0.79 L
D)0.86 L
2
At constant volume, a container of gas at atmospheric pressure is heated from 27 degrees Celsius to 77 degrees Celsius. What is the final pressure?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514781/fig13_3.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (45.0K)</a>
A)0.35 atm
B)1.2 atm
C)0.86 atm
D)2.8 atm
3
A sample of gas starts at 1.00 atm, 0.00 degrees Celsius, and 30.0 mL. What is the volume if the temperature increases to 27.0 degrees Celsius and the pressure increases to 2 atm?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514781/fig13_pg450.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (18.0K)</a>
A)54.6 mL
B)65.9 mL
C)13.7 mL
D)16.5 mL
4
If the pressure exerted by a gas at 100°C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?
A)5.5 x 10-3 mol
B)1.8 x 102 mol
C)1.0 mol
D)100 mol
5
Use the equation above to find the molar mass of a 98.2 g sample of gas that fills a 50.0 liter container at STP.

M = mRT/PV
A)1.48 g/mol
B)44.0 g/mol
C)32.0 g/mol
D)4.00 g/mol
6
Use the equation above to find the density of a gas at STP with a molar mass of 44.0 g/mol.

D=MP/RT
A)1.96 g/liter
B)86.4 g/liter
C)0.0446 g/liter
D)23.9 g/liter
7
A gaseous compound is 30.6% nitrogen and 69.4% oxygen by mass. A 5.25-g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 1.26 atm at –4.0°C. What is the molecular formula for the gas?
A)NO
B)NO2
C)N3O6
D)N2O4
8
In the reaction shown, what mass of methane is required to produce 10.0 grams of water vapor?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514781/fig13_10.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (43.0K)</a>
A)22.5 grams
B)4.45 grams
C).0445 grams
D)6.23 grams
9
What volume of oxygen gas is needed for the complete combustion of 40.0 liters of hydrogen gas?

2H2(g) + O2(g) yields 2H2O(g)
A)40.0 l
B)80.0 l
C)20.0 l
D)2.00 l
10
Dry ice is solid carbon dioxide. What volume of dry ice is produced at STP if 0.50 kg of dry ice becomes carbon dioxide gas?

CO2(s) yields CO2(g)
A)250 l
B)2.0 l
C)0.25 l
D)0.51 l
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.