1) A certain gas has a volume of 31.9-L at a temperature of -10.2C. What would be the volume of this gas at a temperature of 17.8 C assuming the pressure remains constant?

2) A certain gas has a volume of 4.64-L at a pressure of 355 mmHg. What would be the volume of this gas at pressure of 679 mmHg assuming that the temperature remained constant?

3) What mass of hydrogen, H2, is contained in a 76.1-L tank at a pressure of 899 mmHg and a temperature of 16.2C?

4) Determine the molar mass of a gas if 3.75-g occupis 727mL at 766mmHg and 35C.

5) Calculate the density of H2S gas at 1.45 atm and 34C.

6) The metabolic oxidation of glucose C6H12O6, in our bodies produces CO2, which is expelled from our lungs as a gas:

C6H12O6(aq) + 6O2(g) ->6CO2(g) + 6H2O(l)

Calculate the volume of CO2 produced at a body temperature (37C) and 976 mmHg when 38.6g of glucose is consumed in this reaction?

7) Calcium hydride, CaH2, reacts with water to form hydrogen gas:

CaH2(s) + 2H2O(l) -> Ca(OH)2(aq) + 2H2(g)

This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 53.5L of H2 gas if the pressure is 917mmHg at 18C?

8 ) A certain gas has a volume of 31.5L at a temperature of 37C and a pressure of .954 atm. What would be the volume of this gas at STP?