Multiple Choice
Calcium hydride (CaH2) reacts with water to form hydrogen gas:
CaH2(s) + 2H2O(l) → Ca(OH) 2(aq) + 2H2(g)
How many grams of CaH2 are needed to generate 48.0 L of H2 gas at a pressure of 0.888 atm and a temperature of 32°C?
A) 50.7 g
B) 0.851 g
C) 143 g
D) 35.8 g
E) 71.7 g
Correct Answer:
Verified
Correct Answer:
Verified
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