Chemistry Practice Problems Limiting Reagent Practice Problems Solution: Metal hydrides react with water to form hydrogen g...

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Solution: Metal hydrides react with water to form hydrogen gas and metal hydroxide. For example, SrH2 (s) + 2H2O (l) → Sr(OH)2 (s) + 2H2 (g) You wish to calculate the mass of hydrogen gas that can be prepared from 7.27 g of SrH  2  and 6.06 g of H2O. (a) How many moles of H2 can be produced from the given mass of SrH 2? (b) How many moles of H2 can be produced from the given mass of H 2O?  (c) Which is the limiting reactant? (d) How many grams of H2 can be produced? 

Problem

Metal hydrides react with water to form hydrogen gas and metal hydroxide. For example, 

SrH2 (s) + 2H2O (l) → Sr(OH)2 (s) + 2H2 (g) 

You wish to calculate the mass of hydrogen gas that can be prepared from 7.27 g of SrH  2  and 6.06 g of H2O. 

(a) How many moles of H2 can be produced from the given mass of SrH 2


(b) How many moles of H2 can be produced from the given mass of H 2O?  


(c) Which is the limiting reactant? 

(d) How many grams of H2 can be produced? 


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