If $V \ mL$ of a substance at $NTP$ weighs $W \ g$,then the molecular weight of the substance is....

The volume of $0.6 \, M$ $NaOH$ required to neutralize $30 \, cm^3$ of $0.4 \, M$ $HCl$ is ........ $cm^3$.

The volume of $0.1 \, M$ aqueous $KOH$ solution required for the complete neutralization of $20 \, mL$ of $0.1 \, M$ aqueous $H_3PO_3$ solution is .......... $mL$.

How many grams of $HCl$ are required to prepare $1500 \, mL$ of $0.1 \, N \, HCl$ aqueous solution?

The mass of a mixture containing $NaCl$ and $NaBr$ is $4.0 \ g$. If $Na$ is $30 \%$ of the total mixture,the composition of $NaCl$ in the mixture is (in $\%$)

The amount of water produced (in $g$) in the oxidation of $1$ mole of rhombic sulphur by conc. $HNO_3$ to a compound with the highest oxidation state of sulphur is. . . . . (Given data : Molar mass of water $= 18 \ g \ mol^{-1}$)