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in Basic Concepts of Chemistry and Chemical Calculations by (45.7k points)
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10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. The amount of water produced in this reaction will be ……

(a) 3 mol 

(b) 4 mol 

(c) 1 mol 

(d) 2 mol

1 Answer

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Best answer

(b) 4 mol 

10 g of H2 + 64 g of O2 → water 

2H2 + O2 → 2H2

4 g of hydrogen react with 32 g of oxygen. So 10 g of hydrogen will react with 80 g of oxygen. But we have given amount of oxygen only 64 g. It means, here oxygen is the limiting agent. Now all the oxygen react with 8 g of hydrogen and form 4 moles of water.

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