SOLUTION: Jennifer needs to make a solution that is 30% hydrochloric acid. If she must use all of the 25 mL of 60% hydrochloric acid she started with, then how much water needs to be mixed w
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Question 496101: Jennifer needs to make a solution that is 30% hydrochloric acid. If she must use all of the 25 mL of 60% hydrochloric acid she started with, then how much water needs to be mixed with the original solution?
You can put this solution on YOUR website! Since 30% is 1/2 of 60%, just add an equal amount of water.
25 mL of water.
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Or,
0.6*25 + 0*x = 0.3*(25+x)
15 = 7.5 + 0.3x
0.3x = 7.5
x = 25 mL
