Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2 (s) + 2 H2O (l)
Question:
CaH2 (s) + 2 H2O (l) → Ca (OH)2 (aq) + 2H2 (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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nH nH PH V RT P 825 torr x 10855 atm x 6...View the full answer
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Related Book For 
Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward
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