SOLUTION: How many liters of water must be evaporated from 20 L of a 30% salt solution to produce a 50% solution?
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Question 29332
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How many liters of water must be evaporated from 20 L of a 30% salt solution to produce a 50% solution?
Answer by
Paul(988)
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20(30)=50(20-x)
600=1000-50x
-50x=-400
x=8
Hence, about 8L of water should be evaporated.
PAUL.