MiniLab 2 Explain how air pressure helps you transfer a liquid with a pipet.

ChemLab How are inferences made about the relationship between volume and pressure in this chapter's ChemLab similar to inferences made from observing the apparatus described in Figure ?

What physical conditions are specified by the term STP?

Your skill in converting units will help you relate measurements of gas pressure made in different units.

Use Table and the equation $1.00 \mathrm{in} .=25.4 \mathrm{~mm}$ to convert the following measurements.

$19.0$ psi to $\mathrm{kPa}$

Would chlorine gas be suitable for weather balloons? Explain.

Explain why the density of a popped kernel of popcorn is less than that of an unpopped kernel.

Compare the amount of oxygen you would receive in an HBO chamber with the amount you would receive breathing ordinary air.

A $120-\mathrm{mL}$ sample of nitrogen is collected at $900 \mathrm{~mm} \mathrm{Hg}$ and $0^{\circ} \mathrm{C}$. What volume will the nitrogen have when its temperature rises to $100^{\circ} \mathrm{C}$ and the pressure increases to $15 \mathrm{~atm}$ ?

Aerosol Cans Use the kinetic theory to explain why pressurized cans carry the message "Do not incinerate."

Compare and contrast how a barometer and a tire-pressure gauge measure gas pressure.

A sample of carbon dioxide is collected at STP. Its volume is $500 \mathrm{~L}$. What volume will it have if the pressure is $380 \mathrm{~mm} \mathrm{Hg}$ and the temperature is $100^{\circ} \mathrm{C}$ ?

A sample of argon gas is compressed into a volume of 0.712 L by a piston exerting a pressure of 3.92 atm of pressure. The piston is slowly released until the pressure of the gas is 1.50 atm. The new volume of the gas is

a) 0.272 L. b) 3.67 L. c) 1.86 L. d) 4.19 L.

Analyzing If the volume of a helium-filled balloon increases by 20 percent at constant temperature, what will the percentage change in the pressure be?

If the valve in a tire pump with a volume of $0.78 \mathrm{~L}$ fails at a pressure of $9.00 \mathrm{~atm}$, what would be the volume of air in the cylinder just before the valve fails?