Question

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

2 mol

3 mol

4 mol

1 mol

Solution

4 mol

straight i space right parenthesis space straight H subscript 2 space plus 1 half straight O subscript 2 space rightwards arrow straight H subscript 2 straight O

Amount of water produced is decided by limited reactant (ie, the reactant which is used in small amount)

straight H subscript 2 space space space space space space plus space space space space space 1 half straight O subscript 2 space space space space space rightwards arrow space space space space straight H subscript 2 straight O 1 space mol space space space space space space space space space space 1 half space mol space space space space space space space space space space space space space space 1 space mol 10 over 2 space mol space space space space space space space space 64 over 31 space mol space space space space space space space space space space space ? equals space 5 mol space space space space space space space space space equals space 2 space mol space therefore comma space 1 half space mol space of space straight O subscript 2 space gives space space equals space 1 space mol space space straight H subscript 2 straight O therefore comma space 2 space mol space straight O subscript 2 space will space give space space equals space 1 space straight x space 2 space straight x space 2 space space equals space 4 space mol.

Some More Questions From Some Basic Concepts of Chemistry Chapter

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