1.
A gas buret holds 27.00 mL of nitrogen gas at 776.31 mm Hg and 23.45oC. If the temperature drops to
18.66oC, what will be the resulting volume in milliliters? Assume pressure remains constant.

A sample of propane gas, C3H8, has a volume of 1.50 L at 4.315 X 105 Pa and 15.00oC. Calculate the
volume, in liters, at STP.

2.
a) A bottle holds 1.25 L oxygen gas at 25.09oC and 792 torr. How many moles of oxygen are in the bottle?


b) A reaction generates 0.0179 grams nitrogen gas at 53oF and 604 torr. Calculate the volume, in milliliters,
of nitrogen collected.

c) Calculate the density of chlorine gas at 19.73oC and 1.14 atm.

3.

a) A 7.000 g sample of solid potassium chlorate is decomposed in the presence of the catalyst MnO2 to yield
solid potassium chloride and oxygen gas.