2. The reaction of calcium hydride with water can beused to prepare small quantities of hydrogen gas, asis done to fill weather-observation balloons.CaH2(s) + H2O(1) → Ca(OH)2(s) + H2(g) (not balanced)(a) How many grams of H2(g) result from the reactionof 134 g CaH2 with an excess of water?(b) How many grams of water are consumed in thereaction of 58.3 g CaH2?(c) What mass of CaH2(s), in g, must react with anexcess of water to produce 4.15 x 1024 molecules ofH2?

Answered: Image /qna-images/answer/c8702875-2523-49ed-91d5-bf35648cfcab.jpg

2. The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen gas, as is done to fill weather-observation balloons. CaH2(s) + H2O(1) → Ca(OH)2(s) + H2(g) (not balanced) (a) How many grams of H2(q) result from the reaction of 134 g CaH2 with an excess of water? (b) How many grams of water are consumed in the reaction of 58.3 g CaH2? (c) What mass of CaH2(s), in g, must react with an excess of water to produce 4.15 x 1024 molecules of H2?

2. The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen gas, as is done to fill weather-observation balloons. CaH2(s) + H2O(1) → Ca(OH)2(s) + H2(g) (not balanced) (a) How many grams of H2(q) result from the reaction of 134 g CaH2 with an excess of water? (b) How many grams of water are consumed in the reaction of 58.3 g CaH2? (c) What mass of CaH2(s), in g, must react with an excess of water to produce 4.15 x 1024 molecules of H2?

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section: Chapter Questions

Problem 82GQ: The reaction of iron metal and chlorine gas to give iron(III) chloride is illustrated below. (a)...

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