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What is the osmotic pressure of 0.25 M urea solution at 27^ C ( R = 0.0821 L atm mol ⁻¹ K ⁻¹ )?

Options

  1. A3.07 atm
  2. B4.10 atm
  3. C6.15 atm
  4. D2.46 atm

Correct answer

C. 6.15 atm

Step-by-step solution

The osmotic pressure is given by the formula = CRT . Given: C = 0.25 M R = 0.0821 L atm mol ⁻¹ K ⁻¹ T = 27^ C = 27 + 273 = 300 K Substituting the values: = 0.25 0.0821 300 = 6.1575 6.15 atm Answer: 6.15 atm

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