An aqueous ethanol solution (400 mL)was diluted to 4.00 L,giving a concentration of 0.0400 M.The concentration of the original solution was ________ M.
A)0.400
B)0.200
C)2.00
D)1.60
E)4.00

Question

Quizplus · Accepted Answer

The concentration of the original solution can be calculated using the formula:C1V1 = C2V2where C1 is the concentration of the original solution, V1 is the volume of the original solution, C2 is the concentration of the diluted solution, and V2 is the volume of the diluted solution.Substituting the given values into the formula, we get:C1(400 mL) = 0.0400 M (4.00 L)Solving for C1, we get:C1 = 0.400 MTherefore, the concentration of the original solution was 0.400 M.

An Aqueous Ethanol Solution (400 ML)was Diluted to 4