PYQ Vault
EbooksTutor

Molar mass of a solute from the osmotic pressure of its solution

The same question, asked 7 times: 4 May 2023 S2*, 9 May 2023 S2*, 15 May 2023 S1, 15 May 2023 S2*, 9 May 2024 S2*, 18 Apr 2026 S2*, 13 May 2026 S1. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    4 May 2023 S2

    56
    Calculate the molar mass of solute when 4 g of it dissolved in 1 dm³ solvent has osmotic pressure 2 atm at 300 K. [R=0.082 dm3 atm K−1 mol−1][R = 0.082\text{ dm}^3\text{ atm K}^{-1}\text{ mol}^{-1}]

    Tap an option to check your answer.

  2. Question 2

    9 May 2023 S2

    67
    Calculate the molar mass of solute in a solution prepared by dissolving 1 gram in 0.3 dm30.3\ \mathrm{dm^3} solvent having osmotic pressure 0.2 atm at 300 K. [R=0.082 dm3 atm K−1 mol−1]\left[R = 0.082\ \mathrm{dm^3\ atm\ K^{-1}\ mol^{-1}}\right]

    Tap an option to check your answer.

  3. Question 3

    15 May 2023 S1

    90
    A solution of nonvolatile solute is obtained by dissolving 0.8 g in 0.3 dm3^3 water has osmotic pressure 0.2 atm at 300 K. Calculate the molar mass of solute. R=0.082R = 0.082 atm dm3^3 K−1^{-1} mol−1^{-1}

    Tap an option to check your answer.

  4. Question 4

    15 May 2023 S2

    70
    Calculate molar mass of a solute at 300 K if 400 mg of it is dissolved in 300 mL of water exerts osmotic pressure of 0.2 atm. (R=0.0821 L atm K−1mol−1R = 0.0821\text{ L atm K}^{-1}\text{mol}^{-1})

    Tap an option to check your answer.

  5. Question 5

    9 May 2024 S2

    90
    A solution of 8 g of certain organic compound in 2 dm³ water develops osmotic pressure 0.6 atm at 300 K. Calculate the molar mass of compound. R=0.082R = 0.082 atm dm³ K−1^{-1} mol−1^{-1}

    Tap an option to check your answer.

  6. Question 6

    18 Apr 2026 S2

    23
    Calculate the molar mass of nonelectrolyte solute when 6 gram of it is dissolved in 1 dm3\mathrm{dm^3} water has osmotic pressure 2.4 atm2.4\ \mathrm{atm} at 300 K (R=0.0821 atm dm3 K−1 mol−1)(R = 0.0821\ \mathrm{atm\,dm^3\,K^{-1}\,mol^{-1}})

    Tap an option to check your answer.

  7. Question 7

    13 May 2026 S1

    22
    What is the molar mass of a solute when a solution is prepared by dissolving 0.80.8 g of solute in 0.3 dm30.3\ \mathrm{dm^3} of water having osmotic pressure 0.20.2 atm at 300300 K (R = 0.082 atm dm3 K−1 mol−10.082\ \mathrm{atm\,dm^3\,K^{-1}\,mol^{-1}})

    Tap an option to check your answer.