Choose the correct numerical value for the molarity from the response list for a solution using 50.0 mL of 0.40 M solution diluted to a final volume of 0.20 L.
A) 0.10 M
B) 0.12 M
C) 0.25 M
D) 0.30 M

Question

Quizplus · Accepted Answer

To find the molarity after dilution, we use:

M1V1 = M2V2

where M1 is the initial molarity, V1 is the initial volume, M2 is the final molarity, and V2 is the final volume.

Plugging in the given values, we get:

(0.40 M)(50.0 mL) = M2(0.20 L)

Solving for M2 gives:

M2 = (0.40 M)(50.0 mL)/(0.20 L) = 0.10 M

Therefore, the correct choice is A.

Choose the Correct Numerical Value for the Molarity from the Response