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

1 Answer
Mar 17, 2018

"0.34 M"

Explanation:

"Molar mass of NaCl = (23 g/mol) + (35.5 g/mol) = 58.5 g/mol"

Moles of "NaCl" dissolved = "10 g"/"58.5 g/mol" = "0.17 mol"

"Molarity" = "Moles of solute"/"Volume of solution (in litres)"

"Molarity" = "0.17 mol"/"0.50 L" = "0.34 M"