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1 August, 18:16

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

+1
Answers (1)
  1. 1 August, 21:15
    0
    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.
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