Solve the problem.
-A chemist makes a mixture of concentrated hydrochloric acid and distilled water so that the ratio of acid to water is 7 : 3. If he starts with 28 L of acid, how much water is mixed with the acid?
A) 12 L
B) 35 L
C) 23 L
D) 49 L

Question

Quizplus · Accepted Answer

The ratio of acid to water is 7:3, meaning for every 7 parts of acid, there are 3 parts of water. If the chemist starts with 28 L of acid, which corresponds to 7 parts (since 28 divided by 7 equals 4), each part of the ratio represents 4 L (28 L / 7 parts = 4 L per part). Therefore, for the 3 parts of water, it would be 3 parts * 4 L/part = 12 L of water.

Solve the Problem. -A Chemist Makes a Mixture of Concentrated Hydrochloric Acid and Hydrochloric