Define this reaction is sometimes used to inflate life rafts

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Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2 (s) + 2H2O (l) ----> Ca(OH)2 (aq) + 2H2 (g). This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 143L of H2 gas if the pressure of H2 is 823torr at 21deg C?

Reference no: EM13337069

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