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Molar Mass Determination

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

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 17MediumChemistryIf 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 17MediumChemistryIn 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 17EasyChemistryWhich mistake can make the result most incorrect in molar-mass determination by a colligative-property method?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIf 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 16MediumChemistryIf 1.5 g solute forms a 0.05 m solution in 300 g solvent, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryWhen 2 g solute is dissolved in 200 g water, the molality is 0.1 m. What is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIn molar mass determination, if the solute is completely non-dissociated, what value of i is taken?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIf a 0.1 m non-dissociated solution has 0.3 kg solvent and 3.6 g solute, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryA 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 16EasyChemistryA 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 16MediumChemistryA 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 16MediumChemistryIf for a solution ΔT_b = 0.208 K, K_b = 0.52 K kg mol⁻¹, and the solvent mass is 0.25 kg, how many moles of solute are present?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryWhen 2 g of a solute is dissolved in 250 g of solvent, the boiling-point elevation is 0.052 K. If Kb = 0.52 K kg mol⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryWhen 1 g of a non-dissociated solute is dissolved in 100 g of water, the freezing-point depression is 0.093 K. If Kf = 1.86 K kg mol⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIf 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 16EasyChemistryIn a solution, 7.2 g of solute corresponds to 0.04 mol. What is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIf 2 g of a solute dissolved in 0.2 kg of solvent gives a molality of 0.1 m, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIn the boiling-point-elevation method, how should 100 g of solvent be expressed for use in the molality calculation?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryWhat is the correct sequence for determining molar mass by the osmotic-pressure method?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16Medium

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