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Osmotic Pressure

Class 12 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryIf 0.9 g of a substance produces an osmotic pressure of 0.246 atm in 0.3 L of solution at 300 K, what is its molar mass? Take R = 0.082 L atm K⁻¹ mol⁻¹.Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryA solution has an osmotic pressure of 2.46 atm at 300 K and a concentration of 0.1 M. Taking R = 0.082 L atm K⁻¹ mol⁻¹, what is the van’t Hoff factor?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryIn the osmotic-pressure method, if the volume of a solution is halved while the amount of solute and temperature remain unchanged, what happens to the osmotic pressure?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryA 0.6 g sample of a substance produces an osmotic pressure of 0.246 atm in 0.2 L of solution at 300 K. If R = 0.082 L atm K⁻¹ mol⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryWhile calculating molar mass by the osmotic pressure method, if the volume is given as 250 mL, in what form should it be used in the formula?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIn the osmotic-pressure method, 1.5 g of solute is present in 500 mL of solution. If T = 300 K, π = 0.738 atm, and R = 0.082 L atm K⁻¹ mol⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryIf \(2\,\mathrm{g}\) of solute is present in a \(1\,\mathrm{L}\) solution and its molar mass determined by osmotic pressure is \(100\,\mathrm{g\,mol^{-1}}\), how many moles of solute are present?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryIf the osmotic pressure of one solution is greater than that of another at the same temperature, and both solutes are non-dissociating, what can be concluded about the first solution?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryWhen calculating molar mass by the osmotic-pressure method at \(27^\circ\mathrm{C}\), what temperature value should be used?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryIf the osmotic pressure of a 0.1 M solution is to be found at 300 K and the solute is non-dissociating, which formula is simplest?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 17Easy ChemistryIn the osmotic-pressure method, 0.01 mol of a non-electrolyte solute is present in 1 L of solution. At 300 K, if R = 0.082 L atm K⁻¹ mol⁻¹, what is the osmotic pressure?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryWhich method is safest for determining the molar mass of large biomolecules because it does not require a large temperature change?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryA solution contains 2 g of solute in 1 L at 300 K and has an osmotic pressure of 0.6 atm. If R = 0.082 L atm K⁻¹ mol⁻¹, what is the approximate molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryIf the pressure value in the osmotic-pressure method becomes double while all other quantities remain constant, what happens to the calculated molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryIn the osmotic-pressure method, if the mass of solute is increased while all other quantities remain constant, how will the calculated molar mass change?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy ChemistryIf the mass of an unknown solute is 2.4 g and the osmotic pressure method gives the amount of solute as 0.012 mol, what is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium ChemistryWhat is the correct sequence for determining molar mass by the osmotic-pressure method?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium ChemistryFor determining the molar mass of large molecules, which method does not require measurement of very small temperature changes?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium ChemistryA 500 mL solution is prepared from 3.6 g of a non-dissociated solute. Its osmotic pressure at 300 K is 0.738 atm. What is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium ChemistryIn the osmotic pressure method, 2 g of a solute is used to prepare 1 L of solution. At 300 K, the osmotic pressure is 0.492 atm. If R = 0.082 L atm mol⁻¹ K⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium