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Acetic acid associates as dimers in benzene. What is the Van’t Hoff factor (i) if the degree of association of acetic acid is 50%?
  • a)
    0.25
  • b)
    0.50
  • c)
    0.75
  • d)
    0.40
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Acetic acid associates as dimers in benzene. What is the Van’t H...
Given,
Degree of association (α) = 50% = 0.5
Number of molecules associated (n) = 2
Let the Van’t Hoff factor = i
We know that for solutes that associate in solution, i = 1 + ((1/n) -1) x α
= 1 + ((1/2) – 1) x 0.5
= 1 – (0.5 x 0.5)
= 0.75
Therefore, the Van’t Hoff factor is equal to 0.75.
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Community Answer
Acetic acid associates as dimers in benzene. What is the Van’t H...
Der Waals force responsible for this association?

The Van der Waals force responsible for the association of acetic acid dimers in benzene is the London dispersion force. This force arises due to temporary fluctuations in electron distribution within molecules, creating temporary dipoles. These temporary dipoles induce dipoles in neighboring molecules, leading to an attractive force between them. In the case of acetic acid dimers in benzene, the London dispersion force allows the two acetic acid molecules to come together and form dimers, stabilizing the association.
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Acetic acid associates as dimers in benzene. What is the Van’t Hoff factor (i) if the degree of association of acetic acid is 50%?a)0.25b)0.50c)0.75d)0.40Correct answer is option 'C'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Acetic acid associates as dimers in benzene. What is the Van’t Hoff factor (i) if the degree of association of acetic acid is 50%?a)0.25b)0.50c)0.75d)0.40Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Acetic acid associates as dimers in benzene. What is the Van’t Hoff factor (i) if the degree of association of acetic acid is 50%?a)0.25b)0.50c)0.75d)0.40Correct answer is option 'C'. Can you explain this answer?.
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