SOLUTION: A chemist makes a mixture of concentrated hydrochloric acid and distilled water so that the ratio of acid to water is 4 to 3. If he starts with 20 liters of acid, how much water is

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Question 1172961: A chemist makes a mixture of concentrated hydrochloric acid and distilled water so that the ratio of acid to water is 4 to 3. If he starts with 20 liters of acid, how much water is mixed with the acid?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
He MUST add the acid TO the water, for safety.


Strictly in volumes, 4+3 parts is 7 parts of volume. This is 4 parts of the concentrated HCl to 7 part of finished mixture. Or, 3 parts of water to 7 parts of finished mixture.


Or, just as the given ratio, 4 parts conc. acid to 3 parts water.
3%2F4=Q%2F20

Q=3%2A5

highlight%28Q=15%29------------liters of water