Question

What volume of 6.0M NaOH is required to make 300.0mL of 0.500M NaOH?

Answer 1

Option B. 25mL

Step-by-step explanation:

Step 1:

Data obtained from the question:

Molarity of stock solution (M1) = 6M

Volume of stock solution needed (V1) =..?

Molarity of the diluted solution (M2) = 0.5M

Volume of diluted solution (V2) = 300mL

Step 2:

Determination of the volume of the stock solution needed.

Using the dilution formula, we can easily find the volume of the stock solution needed as follow:

M1V1 = M2V2

6 x V1 = 0.5 x 300

Divide both side by 6

V1 = (0.5 x 300) /6

V1 = 25mL

Therefore, 25mL of 6M NaOH is needed.