Further Applications of the Ideal-Gas Equation
Chapter 6, Problem 58E(choose chapter or problem)
Problem 58E
Further Applications of the Ideal-Gas Equation (Section)
Calcium hydride, CaH2, reacts with water to form hydrogen gas:
CaH2(s) + 2 H2O(l)→Ca(OH)2(aq) + 2 H2(g)
This reaction is sometimes used to inflate life rafts, weather balloons, and the like, when a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 145 L of H2 gas if the pressure of H2 is 825 torr at 21 °C?
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