Question

10 g of nacl is dissolved in 250g water. the molarity of concentration of nacl is what?​

Answer 1

Molarity = $\frac{\mathrm{mass}\mathrm{taken}}{\mathrm{molar}\mathrm{mass}}\times \frac{1000}{\mathrm{volume}\mathrm{of}\mathrm{solution}}$
$=\frac{10}{58.5}\times \frac{1000}{250}=0.6837\mathrm{M}$