Question

Calculate the volume percent of solute in each of the solutions. A solution made by adding 17.1 mL of methyl alcohol to enough water to give 489 mL of solution. % (v/v) = A solution made by adding 77.9 mL of ethylene glycol to enough water to give 213 mL of solution. % (v/v) =

Answer 1

Volume of methyl alcohol (solute) = 17.1 mL

Volume of solution = 489 mL

%(v/v) = (volume of solute x 100)/volume of solution

           = (17.1 mL x 100)/489 mL

           = 3.50 %

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Volume of ethylene glycol (solute) = 77.9 mL

Volume of solution = 213 mL

%(v/v) = (volume of solute x 100)/volume of solution

           = (77.9 mL x 100)/213 mL

           = 36.6 %