SOLUTION: I want to find out how much water needs to be added to one gallon of a 75% phosphoric acid solution to create a 6% acid solution.

Question 782912: I want to find out how much water needs to be added to one gallon of a 75% phosphoric acid solution to create a 6% acid solution.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
75% phosphoric acid is about 11.67 pounds per gallon. The percentage is expected weight per weight.
Water is 8.345 pounds per gallon.

Let w = how many pounds of water to add.

, as decimal fractions instead of as percents.

pounds of water.
As volume, gallons of water.
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