Mole ConceptMedium
Question
A gaseous mixture contains 70% N2 and 30% unknown gas by volume. If the average molecular mass of gaseous mixture is 37.60, then the molecular mass of unknown gas is
Options
A.42.2
B.60
C.40
D.50
Solution
$37.60 = \frac{70 \times 28 \times 30 \times M}{100} \Rightarrow M = 60$
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