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A solution has mole fraction of solute 0.6. What is the mole percent of solvent in the same binary solution?

Answer and explanation

Correct answer: 40 percent

For a binary solution containing only solute and solvent, their mole fractions must add to one: xsolute + xsolvent = 1. Therefore, xsolvent = 1 − 0.6 = 0.4. Mole percent is obtained by multiplying the mole fraction by 100, so solvent mole percent = 0.4 × 100 = 40%. Option A is correct; 60% is the solute mole percent, not the solvent value.

Related tags

Mole FractionMole PercentBinary SolutionConcentrationMole Concept And Molar MassSome Basic Concepts Of ChemistryChemistryClass 11 Mcq

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