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Osmotic pressure of an electrolyte solution with a given van't Hoff factor

The same question, asked 2 times: 10 May 2024 S2*, 11 May 2024 S2. Every wording below, oldest first.

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  1. Question 1

    10 May 2024 S2

    56
    What is osmotic pressure of solution of 1.7 g CaCl2_2 in 1.25 dm3^3 water at 300 K if van't Hoff factor and molar mass of CaCl2_2 are 2.47 and 111 g mol−1^{-1} respectively (R=0.082 dm3 atm mol−1 K−1)(R=0.082\,\text{dm}^3\,\text{atm mol}^{-1}\,K^{-1})?

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  2. Question 2

    11 May 2024 S2

    93
    Calculate osmotic pressure of 0.2 M aqueous KCl solution at 0∘C0^{\circ}\text{C} if Van't Hoff factor for KCl is 1.83. R=0.082 dm3 atm mol−1 K−1R = 0.082\text{ dm}^3\text{ atm mol}^{-1}\text{ K}^{-1}

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