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Calculate the mass percent (m/m) of a solution containing 13.5 g of Na2SO4 and 77.5 g...

Calculate the mass percent (m/m) of a solution containing 13.5 g of Na2SO4 and 77.5 g of H2O.

Express your answer to three significant figures.

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Answer #1

mass percent (m/m) of solution = weight of solute / weight of solution*100

                                                          = 13.5/(77.5+13.5)*100

                                                           = 14.83%

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