What volume, in L, of 10.0 M HCl is needed to make 2.00 L of 2.00 M HCl solution by dilution with water?
A)0.800 L
B)0.400 L
C)0.200 L
D)0.100 L
E)None of these choices are correct.

Question

Quizplus · Accepted Answer

To find the volume of the concentrated solution needed, use the dilution equation: M1V1 = M2V2. Here, M1 = 10.0 M, M2 = 2.00 M, and V2 = 2.00 L. Solving for V1 gives V1 = (M2V2) / M1 = (2.00 M * 2.00 L) / 10.0 M = 0.400 L.

What Volume, in L, of 10