10. Hydrogen gas can be produced from the reaction of calcium hydride and water. CaH, (s)...

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Answer 1

Answer #1

The moles of hydrogen gas produced are calculated:

n H2 = P * V / R * T = (760/760) * 2.5 / 0.082 * (26 + 273) = 0.102 mol

The grams of CaH2 are calculated:

g CaH2 = 0.102 mol H2 * (1 mol CaH2 / 2 mol H2) * (42 g CaH2 / 1 mol) = 2.142 g

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Answer 2

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