If the molecular mass and atomic mass of sulphur are $256$ and $32$ respectively,its atomicity is:

An enzyme peroxidase has $5\%$ by weight of sulphur $(S = 32)$. Its minimum molecular weight will be:

If $13.8 \, g$ of an element contains $4.6 \times 10^{22}$ atoms,what is the atomic mass of that element?

The equivalent mass of an element is $4$ and the vapor density of its chloride is $59.25$. Find the valency of the element.

Elements $A$ and $B$ form two compounds $B_2A_3$ and $B_2A$. $0.05$ moles of $B_2A_3$ weigh $9.0 \ g$ and $0.10$ mole of $B_2A$ weigh $10 \ g$. The atomic weights of $A$ and $B$ are:

The density of liquid ethanol is $0.929 \, g \, cm^{-3}$. What is the volume occupied by one mole of ethanol molecules?