Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(1) ---> Ca(OH)2(aq) + 2 H2(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 17.0 L of H2 if the pressure of H2 is 720. torr at gas 26°C?

Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(1) ---> Ca(OH)2(aq) + 2 H2(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 17.0 L of H2 if the pressure of H2 is 720. torr at gas 26°C?

World of Chemistry

7th Edition

ISBN:9780618562763

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter9: Chemical Quantities

Section: Chapter Questions

Problem 54A

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