SOLUTION: How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution?
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Question 998261: How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution?
let x=amt of pure hydrochloric acid to add
30%20+x=50%(30+x)
6+x=15+.50x
.50x=9
x=18
How many cubic centimeters of pure hydrochloric acid should be added? 18
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