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A sample of 0.745 g of KCl is dissolved in 51.8 g of water. What is the percent by mass of KCl in the solution?
Calculate the molality of a sulfuric acid solution containing 23.2g of sulfuric acid in 192g of water. The molar mass of sulfuric acid is 98.08 g?
A sample of 5.42 g of naphthalene is dissolved in 79.8g of benzene (C6H6). Calculate the percent by mass of naphthalene in the solution.
Calculate the percent by mass of the solution 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 152g of water
c) 4.5g of toluene in 29g of benzene
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