Question: Calculate the percent by mass of the solute in each of the following aqueous solutions: (a) 5.50 g of NaBr in 78.2 g of solution,

Calculate the percent by mass of the solute in each of the following aqueous solutions:
(a) 5.50 g of NaBr in 78.2 g of solution,
(b) 31.0 g of KCl in 152 g of water,
(c) 4.5 g of toluene in 29 g of benzene.

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