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Answer to Question #76817 in General Chemistry for maria

Question #76817
How many grams of LiBr are needed to prepare 125 g of 20% solution?
1
Expert's answer
2018-05-03T08:07:40-0400
Answer:
% by mass = (mass of solute/mass of solution) * 100 %
20 % = (mass of solute/125)*100%
mass of solute = 25 g

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