The volume of water which must be added to $40 \ cc$ of $0.25 \ M$ oxalic acid solution to make it exactly decimolar $(0.1 \ M)$ is $....... \ cc$.

The mole fraction of a solute in a binary solution is $0.1$. At $298 \ K$,molarity of this solution is same as its molality. Density of this solution at $298 \ K$ is $2.0 \ g \ cm^{-3}$. The ratio of molecular weights of the solute and the solvent $(M_{solute} / M_{solvent})$ is:

Give the meaning of $10\%$ glucose by weight.

$A$ solution is prepared by adding $2 \ g$ of a substance $A$ to $18 \ g$ of water. Calculate the mass per cent of the solute. (in $\%$)

The volume of water added to $500 \ mL$ of $0.5 \ M \ NaOH$ solution so that its strength becomes $10 \ mg \ mL^{-1}$ will be .......... $mL$.

Molar solution means $1 \text{ mole}$ of solute present in