12-7: Stoichiometric Gas Problems
Chapter 12

Dr. Robert Belford & Rebekah Reinhart




Question 1
What pressure results when 76.3 grams of CaH2(s) reacts with water to form H2(g) with a volume of 35.2 liters and a temperature of 46.0oC?
(A)  0.87atm
(B)  2.70atm
(C)  3.65atm
(D)  NOTA
 
Hint

Your response
Not answered yet

Question 2
How many grams of CaH2(s) are needed to form 51.8L of H2(g) at STP?
(A)  33.4g
(B)  48.6g
(C)  57.2g
(D)  NOTA
 
Hint

Your response
Not answered yet

Question 3
Calculate the temperature at which 4.71 moles of H2(g) are formed from the reaction of CaH2(s) with H2O(l) at a pressure of 2.55atm and a volume of 85.8 liters.

(A)  273oC
(B)  293oC
(C)  566oC
(D)  NOTA
 
Hint

Your response
Not answered yet

Question 4
If 36.2 grams of CaH2(s) were allowed to completely react with H2O(l) at 1.3atm and 18.7oC, what would be the resulting H2(g) volume?
(A)  31.7L
(B)  41.2L
(C)  53.6L
(D)  NOTA
 
Hint

Your response
Not answered yet