What volume of 11.0 M hydrochloric acid must be diluted to obtain 1 dm^3 of 0.05M acid?

What volume of 11.0 M hydrochloric acid must be diluted to obtain 1 dm^3 of 0.05M acid? 

A. 0.05 dm^3

B. 0.10 dm^3

C. 0.55 dm^3

D. 11.0 dm^3

The closest to the correct answer is A. 0.05 dm^3

Calculation:

Explanation

using C1V1 = C2V2

C1 = 11.0M, V1 = ?, C2 = 0.05M and V2 = 1dm3

V1 = (C2V2)(C2) =  (0.05×1)(11) = 0.005 dm3

QUESTION NUMBER TWENTY ONE