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Concentration of a solution from its osmotic pressure

The same question, asked 2 times: 19 Apr 2025 S2*, 13 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    19 Apr 2025 S2

    84
    Calculate the concentration of an aqueous solution of non-electrolyte at 300 K if its osmotic pressure is 12 atm . [R=0.0821 atmdm3 K−1 mol−1]\left\lbrack R = 0.0821\text{ }atmdm^{3}{\text{ }K}^{- 1}{\text{ }mol}^{- 1} \right\rbrack

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  2. Question 2

    13 Apr 2026 S2

    21
    An aqueous solution has an osmotic pressure of 4.924.92 atm at 300300 K. Calculate the molarity of the solution. (R=0.082(R = 0.082 L atm mol−1 K−1)\mathrm{mol^{-1}\,K^{-1}})

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