Question

calculate the amount of benzoic acid required to prepare an aqueous solution to show an elevation in boiling point observed by 10 moles of benzoic acid

Answer 1

Benzoic acid
Molar mass = 122.12 g/mol
Given that, moles of benzoic acid = 10 mol

$$\begin{gathered} \mathrm{Moles}=\frac{\mathrm{Mass}\mathrm{required}}{\mathrm{Molar}\mathrm{mass}} \\ 10=\frac{\mathrm{Mass}\mathrm{required}}{122.12} \\ \mathrm{Mass}\mathrm{required}=1221.2\mathrm{g} \end{gathered}$$

Mass of benzoic acid required to make aqueous solution = 1221.2g