What is the molarity of a solution prepared by dissolving 33.4 g of sodium chloride in some water and then diluting the solution to a volume of 300.00 mL?

Question

Zoe Bowen

Chemistry

9 February, 13:50

What is the molarity of a solution prepared by dissolving 33.4 g of sodium chloride in some water and then diluting the solution to a volume of 300.00 mL?

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Brodie Ayala · Answer 1

1. Since you must need the value for moles to find the molarity you have to convert 33.4g into moles.

33.4gNaCl / 58.44gNaCl =.572molNaCl

2. Since you cannot use mL to find molarity, you must convert the value into liters by dividing the value by 1000.

300.00 / 1000 =.3L

3. Now plug in your values into the equation. (M = mol/L) [ Just divide moles by the liters]

M =.572 /.300 = 1.91M OR 1.91mol/L (Units can be M, or mol/L)