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A 170 g sample of an aqueous alcohol solution contains 20.0% alcohol by mass. What is the mass of solvent present in the solution? 20 g 34g 136 g 170 g
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A 170 g sample of an aqueous alcohol solution contains 20.0% alcohol by

mass. What is the mass of solvent present in the solution?
20 g
34g
136 g
170 g

User Rob Allsopp
by
4.9k points

1 Answer

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We are given that alcohol is the solute, which leaves whatever is not alcohol as the solvent. 20.0% of the solution’s mass is alcohol, meaning 80.0% of the solutions mass is solvent. We are given its mass as 170 g, so just multiply 0.800*170 g = 136 g.
User Captain KurO
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