(a) 
What is the volume of 0.400 g of hydrogen gas
at STP? 



(b) 
How many grams of CO_{2} are in a 10.0L
bottle of the gas at STP? 



(c) 
How many moles of Nitrogen gas can fill a 4.0L
balloon atSTP? 



(d) 
Would your answer to (c) be any different if the
gas is Argon? 

(e) 
Determine the density of oxygen gas at STP? 



(f) 
Would your answer to (e) be any different if the
gas is Argon? 
