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A solution containing 10 g per dm 3 of urea (molecular mass = 60 g mol–1) is isotonic with a 5% solution of a  non-volatile solute. The molecular mass of this nonvolatile solute is [2006]
  • a)
    300 g mol–1
  • b)
    350 g mol–1
  • c)
    200 g mol–1
  • d)
    250 g mol–1
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A solution containing 10 g per dm 3 of urea (molecular mass = 60 g mol...
Osmotic pressure of urea from the formula
5% solution means
100 ml     5gm
1000 ml    50 g/L
Osmotic pressure of solution having nonvolatile solute 
For isotonic solution,   π12
M = 300 gm mol–1
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Most Upvoted Answer
A solution containing 10 g per dm 3 of urea (molecular mass = 60 g mol...
-1) would have a molarity of:

Molarity = moles of solute/volume of solution in liters

First, we need to find the number of moles of urea in 10 g:

moles of urea = mass/molecular mass
moles of urea = 10 g/60 g mol-1
moles of urea = 0.1667 mol

Next, we need to convert the volume from dm3 to liters:

1 dm3 = 1 liter

Therefore, the molarity of the solution is:

Molarity = 0.1667 mol/0.01 L
Molarity = 16.67 M
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A solution containing 10 g per dm 3 of urea (molecular mass = 60 g mol–1) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this nonvolatile solute is [2006]a)300 g mol–1b)350 g mol–1c)200 g mol–1d)250 g mol–1Correct answer is option 'A'. Can you explain this answer?
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A solution containing 10 g per dm 3 of urea (molecular mass = 60 g mol–1) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this nonvolatile solute is [2006]a)300 g mol–1b)350 g mol–1c)200 g mol–1d)250 g mol–1Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A solution containing 10 g per dm 3 of urea (molecular mass = 60 g mol–1) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this nonvolatile solute is [2006]a)300 g mol–1b)350 g mol–1c)200 g mol–1d)250 g mol–1Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A solution containing 10 g per dm 3 of urea (molecular mass = 60 g mol–1) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this nonvolatile solute is [2006]a)300 g mol–1b)350 g mol–1c)200 g mol–1d)250 g mol–1Correct answer is option 'A'. Can you explain this answer?.
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