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
B) 0.851
C) 143
D) 35.8
E) 71.7
Correct Answer:
Verified
Correct Answer:
Verified
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