What is the molarity of a solution containing 50 g of NaCl per liter?

Question

Quizplus · Accepted Answer

Molarity equals the number of moles per liter,and the number of moles equals the grams divided by the gram-molecular weight.
 Step 1: Find the gram-molecular weight of NaCl.It is 58.5 g (Na = 23 and Cl = 35.5).
 Step 2: Find the moles per liter.
 $ \frac{50 \mathrm{~g} / \mathrm{L}}{x}=\frac{58.5 \mathrm{~g} / \mathrm{L}}{1 \mathrm{~mol}} $
$ x=\frac{50 \mathrm{~g} / \mathrm{L} \times 1 \mathrm{~mol}}{58.5 \mathrm{~g} / \mathrm{L}}=0.855$ ,mol NaCl
Step 3: The number of moles per liter of solution equals the molarity; the solution in the example is therefore 0.855M,rounded off to 0.9M.

What Is the Molarity of a Solution Containing 50 G