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NTA Abhyas JEE Main2020ChemistrySolutionsPractice

pH of 0 .1 M aqueous solution of weak monoprotic acid HA is 2 . Calculate osmotic pressure of this solution at 27 o C . Take solution constant R = 0 .082 L atm/K-mol

Options

  1. A2.46 atm
  2. B3.5 atm
  3. C3.05 atm
  4. D2.7 atm

Correct answer

D. 2.7 atm

Step-by-step solution

H + = 0.1 × ∝ = 1 0 - 2 ∴ ∝ = 0.1 π = iCRT = 1 .1 × 0 .1 × 0 .082 × 300 = 2 .7 atm

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