A substance has 16% by mass of Sulphur and 4% by mass of Oxygen. Calculate minimum molar mass of the substance.

Engineering

Chemistry

Average Atomic and Molecular Masses

Question

200

100

400

600

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Let molar mass = a

$\frac{4}{100} \times a = 16 \Rightarrow a = \frac{1600}{4} = 400$