Question

PLEASE HELP!

Distilled vinegar contains a solution of acetic acid (CH3CO2H) in H2O. Using the formula M1V1=M2V2, solve for the concentration of the solution that results from diluting 0.50 L of 0.839 M vinegar solution to 2.5 L?

Question 4 options:

0.15 M


0.24 M


0.17 M


1.49 M

Answer 1

Using the formula M1V1=M2V2, where M1 is the initial concentration, V1 is the initial volume, M2 is the final concentration, and V2 is the final volume, we can solve for the final concentration:

M1V1 = M2V2

0.839 M x 0.50 L = M2 x 2.5 L

M2 = (0.839 M x 0.50 L) / 2.5 L

M2 = 0.168 M

Therefore, the concentration of the solution that results from diluting 0.50 L of 0.839 M vinegar solution to 2.5 L is 0.168 M.

Answer: 0.17 M (rounded to two significant figures)

Answer 2

0.15M is the answer