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

ChemistryIf the actual molar mass of a solute is 180 g mol⁻¹ but the experimental value is 90 g mol⁻¹, which process is possible?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 ChemistryIf a \(0.5\,\mathrm{mol\,kg^{-1}}\) solution contains \(250\,\mathrm{g}\) of solvent, how many moles of solute are present?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17Easy ChemistryIn the freezing-point-depression method, \(K_f=1.86\,\mathrm{K\,kg\,mol^{-1}}\), \(\Delta T_f=0.93\,\mathrm{K}\), and the solute is non-dissociating. What is the molality?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Easy 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 ChemistryWhat happens if \(w_A\) and \(w_B\) are interchanged in a molar-mass determination formula?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium 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 ChemistryA solution contains 2 g of solute in 500 mL of solution. If the molar mass is 100 g mol⁻¹, what is the molar concentration?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 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 of the following colligative properties can be used to determine the molar mass of a solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 17Easy ChemistryThe depression in freezing point of a solution is 0.186 K. If K_f = 1.86 K kg mol⁻¹ and the molality of the solution is 0.1 mol kg⁻¹, what is the van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17Easy ChemistryIn the boiling-point elevation method, 2 g of a non-electrolyte solute is dissolved in 100 g of solvent. If K_b = 0.5 K kg mol⁻¹ and the elevation in boiling point, ΔT_b, is 0.25 K, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium ChemistryA 0.01 M solution has a volume of 500 mL and contains 0.9 g of solute. What is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Easy ChemistryA solute forms 250 mL of a 0.02 M solution. If the mass of solute present is 1.0 g, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium ChemistryA non-dissociated solute of mass 8 g is dissolved in 0.25 kg solvent and the molality is 0.4 m. What is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium ChemistryIf 4.4 g of a solute corresponds to 0.025 mol, what is the approximate molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Easy ChemistryIn a solution, 7.2 g of solute corresponds to 0.04 mol. What is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Easy ChemistryIf 2 L of a 0.01 M solution contains 3.6 g of solute, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Easy ChemistryIf a solution has a concentration of 0.05 M and contains 2 g of solute per 250 mL of solution, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium