Understanding Molarity

Molarity (M) is a unit of concentration that represents the number of moles of solute per liter of solution.

Formula

Molarity (M) = (moles of solute) / (liters of solution)

Calculations

1. Convert mL to L: 75 mL = 0.075 L

2. Plug the values into the formula:

M = (0.5 moles) / (0.075 L)

3. Calculate: M = 6.67 M

Answer

The molarity of the sodium hydroxide solution is 6.67 M.