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A mixture of gases contains $H_2$ and $O_2$ gases in the ratio of 1:4 (w/w). What is the molar ratio of the two gases in the mixture?
A
1:4
B
4:1
C
16:1
D
2:1
Detailed Solution
Molar masses: $H_2$ = 2 g/mol, $O_2$ = 32 g/mol.
Moles of $H_2$ : $O_2$ $= \frac{1}{2} : \frac{4}{32} = \frac{1}{2} : \frac{1}{8} = 4 : 1$
Moles of $H_2$ : $O_2$ $= \frac{1}{2} : \frac{4}{32} = \frac{1}{2} : \frac{1}{8} = 4 : 1$