What is the molarity of a solution made by diluting 100 mL of a 2.5 M solution to 200 mL?
A)200 M
B)2.5 M
C)5.0 M
D)1.25 M

Question

Quizplus · Accepted Answer

The molarity after dilution can be calculated using the formula M1V1 = M2V2, where M1 and V1 are the molarity and volume of the initial solution, and M2 and V2 are the molarity and volume of the final solution. Substituting the given values: (2.5 M)(100 mL) = (M2)(200 mL), solving for M2 gives 1.25 M.

What Is the Molarity of a Solution Made by Diluting