Chemistry - Concentration Terms Question with Solution | TestHub

Volume of solution = 100 mL
Mass of solution$=$Volume$\times$density
Mass of solution$=100\times 1.12=112$g
Concentration in ppm$=\frac{{\mathrm{W}}_{\mathrm{s}\mathrm{o}\mathrm{l}\mathrm{u}\mathrm{t}\mathrm{e}}}{{\mathrm{W}}_{\mathrm{s}\mathrm{o}\mathrm{l}\mathrm{u}\mathrm{t}\mathrm{i}\mathrm{o}\mathrm{n}}}\times 10^6$
ppm in NaCl solution$=\frac{40}{112}\times 10^6$
$=3.57\times 10^5$ppm.