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Molality

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

ChemistryIf 1.2 g of a solute forms a 0.02 m solution and the solvent mass is 0.5 kg, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryWhen 2.5 g of a non-dissociated solute is dissolved in 100 g of solvent, the boiling-point elevation is 0.13 K. If K_b = 0.52 K kg mol⁻¹, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryWhen 3 g of a non-dissociated solute is dissolved in 200 g of water, ΔT_f = 0.279 K. If K_f = 1.86 K kg mol⁻¹, what is the molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18MediumChemistryIf the mass of solvent is given in grams, into which unit should it be converted before calculating molality?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryA nonelectrolyte solution has a boiling-point elevation, \(\Delta T_b=0.052\,K\), and the ebullioscopic constant is \(K_b=0.52\,K\,kg\,mol^{-1}\). What is the molality of the solution?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryA nonelectrolyte solution has a freezing-point depression, \(\Delta T_f=0.186\,K\), and the cryoscopic constant is \(K_f=1.86\,K\,kg\,mol^{-1}\). What is the molality of the solution?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf 1 g of a solute dissolved in 100 g of solvent forms a 0.1 m solution, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf Kb and ΔTb are given, how is molality found for a nonelectrolyte?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf Kf and ΔTf are given, which quantity can be found first?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf 0.1 mol of solute is dissolved in 1 kg of solvent, what is the molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 18EasyChemistryWhich relation is correct for a nonelectrolyte in the boiling-point elevation method?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryWhich relation is correct for finding molality in the freezing-point depression method?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18EasyChemistryIf 0.1 mol of solute is dissolved in 0.5 kg of solvent, what is the molality?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17EasyChemistryIf 5 g of solute is dissolved in 250 g of solvent, what is the mass of the solvent in kilograms?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17EasyChemistryWhy does the factor 1000 appear in molar-mass determination formulas using molality?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17EasyChemistryIn a molality calculation, in which unit is the mass of the solvent taken?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17EasyChemistryWhat is one of the most common mistakes in molar mass determination using colligative properties?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIf a 0.2 m solution is prepared using 1 kg of solvent, how many moles of solute are present?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIn which method is it most important to express the mass of the solvent in kilograms?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16EasyChemistryIf the molality is 0.2 m and the mass of solvent is 0.25 kg, how many moles of solute are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 16Easy