Question

What is the molarity of sodium chloride in a solution containing 0.50 mol of sodium chloride in 500 mL of water?

A: 0.25 M
B: 0.50 M
C: 1.0 M
D: 5.0 M

Answer 1

The molarity of sodium chloride in the solution is 1.0 M.

Step-by-step explanation:

Molarity (M) is a unit used to measure the concentration of a solution. It is calculated by dividing the number of moles of solute by the volume of the solution in liters. In this case, we have 0.50 moles of sodium chloride (NaCl) and a volume of 500 mL, which is equivalent to 0.500 L.

To find the molarity, we divide the moles of NaCl by the volume:

Molarity (M) = Moles of NaCl / Volume of Solution

Molarity (M) = 0.50 mol / 0.500 L

Molarity(M) = 1.0 M