Question 456086: How many liters of water must be evaporated from 20L of a 30% salt solution to produce a 50% salt solution?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! How many liters of water must be evaporated from 20L of a 30% salt solution to produce a 50% salt solution?
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20L of a 30% salt solution has 6 liters of salt in 14 liters of water
To be 50%, the water has to also be 6 liters
14 - 6 = 8 liters of water to evaporate.
8 liters
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PS The salt doesn't evaporate, only the water. In a salt water fish tank, you never have to add salt.
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