SOLUTION: How much water must be evaproated from 36 ounces of a 7% salt solution to make a 9% salt solution?

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Question 248768: How much water must be evaproated from 36 ounces of a 7% salt solution to make a 9% salt solution?
Answer by Alan3354(69443) About Me  (Show Source):
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How much water must be evaproated from 36 ounces of a 7% salt solution to make a 9% salt solution?
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There are 2.52 oz of salt (36*0.07)
For 2.52 oz to be 9%, the total is
2.52/0.09 = 28 oz total
36 - 28 = 8 ounces to evaporate.