In the Victor Meyer method,$0.2 \ g$ of a volatile substance displaces $56 \ mL$ of air at $STP$. The molar mass of the substance is:

What quantity of oxygen is required for complete burning of $15.6 \ g$ benzene (in $g$)?

Calculate the volume of $O_2$ at $STP$ required for the combustion of $1 \, \text{mol}$ of carbon disulfide $(CS_2)$ in $L$.

What is the quantity of hydrogen gas liberated when $46 \ g$ sodium reacts with excess ethanol? (Given Atomic mass of $Na = 23$)

What volume in $mL$ of $73 \ g/L$ hydrochloric acid is required to completely neutralize the sodium hydroxide produced by the reaction of $0.46 \ g$ of sodium metal with water?

When are the normality $(N)$ and molarity $(M)$ of a solution equal?