Question

20g h2o react with 64g o2 to give 36h2o

Answer 1

Answer:

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Explanation:



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Class 11

>>Chemistry

>>Some Basic Concepts of Chemistry

>>Stoichiometry and Stoichiometric Calculations

>>10 g of hydrogen and 64 g of oxygen were

Question



10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount to water produced in this reaction will be:

A

3 mol

B

4 mol

Correct Answer

C

1 mol

Your Answer

D

2 mol

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Solution



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Correct option is B)

2H2+O2→2H2O

10 g of hydrogen (molar mass 2 g/mol) = 2 g/mol  10 g = 5 mol 

 64 of oxygen  (molar mass 32 g/mol) = 32 g/mol  64 g = 2 mol 

As per the balanced chemical equation, 1 mole of oxygen will react with 2 moles of hydrogen to form 2 moles of water.

2 moles of oxygen will react with 2×2=4 moles of hydrogen to form 4moles of water.

Here, oxygen is the limiting reagent and hydrogen is the excess reagent.