Chapter 5: Gases and the Kinetic-Molecular Theory

A sample of sulfur hexafluoride gas occupies 9.10 L at $\mathbf{198}\mathbf{°}\mathit{C}$. Assuming that the pressure remains constant, what temperature (in $\mathbf{°}\mathit{C}$) is needed to reduce the volume to 2.50 L?

A 93-L sample of dry air cools from $\mathbf{145}\mathbf{°}\mathit{C}$to $\mathbf{-}\mathbf{22}\mathbf{°}\mathit{C}$ while the pressure is maintained at 2.85 atm. What is the final volume?

A sample of Freon-12 ($\mathit{C}{\mathit{F}}_{\mathbf{2}}\mathit{C}{\mathit{I}}_{\mathbf{2}}$) occupies 25.5 L at 298 K and 153.3 kPa. Find its volume at STP.

A sample of carbon monoxide occupies 3.65 L at 298 K and 745 torr. Find its volume at $\mathbf{-}\mathbf{14}\mathbf{°}\mathit{C}$and 367 torr.

A sample of chlorine gas is confined in a 5.0-L container at 328 torr and $\mathbf{37}\mathbf{°}\mathit{C}$. How many moles of gas are in the sample?

If $\mathbf{1}\mathbf{.}\mathbf{47}\mathbf{\times }{\mathbf{10}}^{\mathbf{-}\mathbf{3}}$of argon occupies a 75.0-mL container at $\mathbf{26}\mathbf{.}\mathbf{°}\mathit{C}$, what is the pressure (in torr)?

You have 357 mL of chlorine trifluoride gas at 699 mmHg and $\mathbf{45}\mathbf{°}\mathit{C}$. What is the mass (in g) of the sample?

A 75.0-g sample of dinitrogen monoxide is confined in a 3.1-L vessel. What is the pressure (in atm) at $\mathbf{115}\mathbf{°}\mathit{C}$?

In preparation for a demonstration, your professor brings a 1.5-L bottle of sulfur dioxide into the lecture hall before class to allow the gas to reach room temperature. If the pressure gauge reads 85 psi and the temperature in the hall is $\mathbf{23}\mathbf{°}\mathbf{C}$ , how many moles of sulfur dioxide are in the bottle?

A gas-filled weather balloon with a volume of 65.0 L is released at sea-level conditions of 745 torr and $\mathbf{25}\mathbf{°}\mathbf{C}$. The balloon can expand to a maximum volume of 835 L. When the balloon rises to an altitude at which the temperature is$\mathbf{-}\mathbf{5}\mathbf{°}\mathbf{C}$ and the pressure is 0.066 atm, will it reach its maximum volume?