10g of NaCl are dissolved in 0.50L of water, what is the molarity of this solution?

Mar 17, 2018

$\text{0.34 M}$

Explanation:

$\text{Molar mass of NaCl = (23 g/mol) + (35.5 g/mol) = 58.5 g/mol}$

Moles of $\text{NaCl}$ dissolved $= \text{10 g"/"58.5 g/mol" = "0.17 mol}$

$\text{Molarity" = "Moles of solute"/"Volume of solution (in litres)}$

$\text{Molarity" = "0.17 mol"/"0.50 L" = "0.34 M}$