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If the mole fraction of a solute in a solution is 0.2, what is the mole fraction

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Question: If the mole fraction of a solute in a solution is 0.2, what is the mole fraction of the solvent?

Options:

  1. 0.8
  2. 0.2
  3. 0.5
  4. 0.6

Correct Answer: 0.8

Solution: 

Mole fraction of solvent = 1 - mole fraction of solute = 1 - 0.2 = 0.8.

If the mole fraction of a solute in a solution is 0.2, what is the mole fraction

Practice Questions

Q1
If the mole fraction of a solute in a solution is 0.2, what is the mole fraction of the solvent?
  1. 0.8
  2. 0.2
  3. 0.5
  4. 0.6

Questions & Step-by-Step Solutions

If the mole fraction of a solute in a solution is 0.2, what is the mole fraction of the solvent?
  • Step 1: Understand that the mole fraction of a solute is given as 0.2.
  • Step 2: Know that the total mole fraction of a solution (solute + solvent) is always equal to 1.
  • Step 3: To find the mole fraction of the solvent, subtract the mole fraction of the solute from 1.
  • Step 4: Perform the calculation: 1 - 0.2 = 0.8.
  • Step 5: Conclude that the mole fraction of the solvent is 0.8.
  • Mole Fraction – Mole fraction is the ratio of the number of moles of a component to the total number of moles of all components in a solution.
  • Calculation of Mole Fraction – To find the mole fraction of one component, subtract the mole fraction of the other component from 1.
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