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Question
What volume of H2O is required to produce 5 L O2 by the following equation: 2H2O(g)→2H2(g)+O2(g)
What volume of H2O is required to produce 5 L O2 by the following equation: 2H2O(g)→2H2(g)+O2(g)
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Solution
The correct option is C 10 L
The unbalanced chemical equation is H2O(g)→H2(g)+O2(g).
The balanced chemical equation is 2H2O(g)→2H2(g)+O2(g)
Thus 1 mole of O2 is obtained from 2 moles of H2O.
Also, the volume is directly proportional to the number of moles.
Hence, 5 L of O2 will be obtained from 5×21=10 L of H2O.
The unbalanced chemical equation is H2O(g)→H2(g)+O2(g).
The balanced chemical equation is 2H2O(g)→2H2(g)+O2(g)
Thus 1 mole of O2 is obtained from 2 moles of H2O.
Also, the volume is directly proportional to the number of moles.
Hence, 5 L of O2 will be obtained from 5×21=10 L of H2O.
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