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How Many Grams of Calcium Hydride Are Required to Produce

Question 178

Multiple Choice

How many grams of calcium hydride are required to produce 1.14 L of hydrogen gas at 25.0°C and 0.975 atm pressure according to the chemical equation shown below? CaH2(s) + 2 H2O(l) → Ca(OH) 2(aq) + 2 H2(g)


A) 0.956 g
B) 1.91 g
C) 3.82 g
D) 11.4 g

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