A mixture of gases contains H2 and O2 gases in the ratio of 1:4 by weight. What is the molar ratio of the two gases in the mixture?
A
1:4
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B
4:1
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C
16:1
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D
2:1
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Solution
The correct option is B 4:1 Number of moles (n) =given mass(m)molar mass (M)
As the ratio by weight of Hydrogen and Oxygen is 1:4,
Molar ratio will be nH2nO2=12432=328 = 4:1
The molar ratio of Hydrogen and Oxygen is 4:1.