54. Bonkosi mixes 60 milliliters of Solution A with 40 milliliters of Solution X. Solution A has a 40% hydrochloric acid concentration; Solution X has an unknown hydrochloric acid concentration. When Bonkosi tests the resulting 100-milliliter solution, she finds that it has a 36% hydrochloric acid concentration. What is the hydrochloric acid concentration of Solution X ?

Answer and Explanation

Your Answer is

Correct Answer is H

Explanation

Assuming that the concentration of hydrochloric acid in solution X is M, then we can get 0.4 ×60+M ×40=0.36 ×100 from the meaning of the question