A 10%(w/w) aqueous salt solution contains 5g of salt in it.calculate the amount of water that should be evaporated to make it's concentration 15% (w/w)???
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Answer:
The answer is 4%
Explanation:
Mass of solute = 20 g
Volume of solution = 500 ml
Mass by volume percentage = Volume of solution
Mass of solute × 100
20 × 100
4%
Hope it helps!
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