Understanding Molarity

Molarity (M) is a unit of concentration that expresses the number of moles of solute per liter of solution. The formula is:

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

Applying the Formula

1. Identify the values:

- Moles of solute (KCl) = 0.202 moles

- Liters of solution = 7.98 L

2. Substitute the values into the formula:

Molarity (M) = 0.202 moles / 7.98 L

3. Calculate the molarity:

Molarity (M) ≈ 0.0253 M

Answer: The molarity of the KCl solution is approximately 0.0253 M.