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Hydrogen gas is used as a fuel instead of fossil fuels. Storage of hydrogen is a...

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Chemistry

Hydrogen gas is used as a fuel instead of fossil fuels. Storageof hydrogen is a challenge. One avenue of research involveschemical storage such as incorporating hydrogen as part of a metalhydride. In the following reaction sodium borohydride, NaBH4, isused as a means for storing and later generating the hydrogen gasin situ where it is needed as a fuel. Application of heat and useof a catalyst drives the reaction forward. NaBH4(s) + 2 H2O(l) →NaBO2(s) + 4 H2(g) To test the efficiency of the reaction, 0.11 gof sodium borohydride is catalytically decomposed and 244 mL ofhydrogen gas is collected over water at 30.0 °C under anatmospheric pressure of 752 mmHg. Calculate the % yield of thereaction

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4.0 Ratings (600 Votes)
Calculation of number of moles of H2 gas produced We know that PV nRT Where P Pressure 752 mm Hg 752 760 atm Since 1 atm 760 mm Hg 0989 atm V volume 244 mL 0244 L n number of moles R gas    See Answer
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