Chemistry - Concentration Terms Question with Solution | TestHub

Volume of solution $=\frac{\text{ mass }}{\text{ density }}=\frac{92}{1.7}\mathrm{mL}$

Mass of solute $=\frac{70}{100}\times \frac{92}{1.4}=46\mathrm{g}$

Volume $=\frac{\text{ mass }}{\text{ density }}=\frac{100}{1}=100\mathrm{mL}=0.1\mathrm{L}$

moles $=10\times 0.1=1\mathrm{mole}$

mass of $\mathrm{HCOOH}=\frac{25}{100}\times 100=25\mathrm{g}$

Volume $=\frac{\text{ mass }}{\text{ density }}=92\mathrm{mL}$

Moles of $\mathrm{HCOOH}=5\times .092=.46$