Molarity from Grams and Volume of Solution

Q.
You have 10.0 g of NaCl (58.43g/mol) and dissolve it in 0.5L of water. What is the molarity of the resulting solution.
A.
(a) Convert the 10.0g NaCl to moles: (10.0g) / 58.43g/mol = 0.171 moles NaCl

(b) 0.171 moles NaCl / (0.5L) = 0.342 mol/L

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