A stock solution of sodium sulfate NaSO4 has a concentrate of 1.00 m. The volume of this solution is 50 ml. What volume of 0.25 M solution could be made from the stock solution

200 mL

Explanation:

Concept tested: Dilution formula

We are given;

Concentration of stock solution as 1.00 M Volume of the stock solution as 50 mL Molarity of the dilute solution as 0.25 M

We are required to calculate the volume of diluted solution;

The stock solution is the original solution before dilution while diluted solution is the solution after dilution. Using the dilution formula we can determine the volume of diluted solution;

M1V1 = M2V2

Rearranging the formula;

V2 = M1V1 : M2

= (1.00 M * 50 mL) : 0.25 M

= 200 mL

Therefore, a volume of 200mL of 0.25 M solution could be made from the stock solution.