If the mole ratio of solute to solvent is 3:2, what is the mole percent of solvent?
Answer and explanation
Correct answer: 40%
Mole percent is the mole fraction of the specified component multiplied by 100. Take 3 mol solute and 2 mol solvent, so total moles are 5. The solvent mole fraction is 2/5 = 0.40; multiplying by 100 gives a solvent mole percent of 40%. Thus option A is correct. The 60% value belongs to the solute, not the solvent.
Frequently asked questions
What is the correct answer to this question?
40%
Why is this the correct answer?
Mole percent is the mole fraction of the specified component multiplied by 100. Take 3 mol solute and 2 mol solvent, so total moles are 5. The solvent mole fraction is 2/5 = 0.40; multiplying by 100 gives a solvent mole percent of 40%. Thus option A is correct. The 60% value belongs to the solute, not the solvent.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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