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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।

ChemistryWhen 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 18Medium ChemistryWhen 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 18Medium ChemistryWhich property forms the basis for determining the molar mass of a solute using a colligative property such as freezing-point depression?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryWhat should be done first in a numerical problem on molar-mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryMeasurement of the osmotic pressure of a solution is especially suitable for determining the molar mass of which type of solute?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 18Easy ChemistryIf Kb = 0.52 K kg mol⁻¹, w₂ = 2 g, w₁ = 100 g, and ΔTb = 0.104 K, what is the molar mass M?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryIf Kf = 1.86 K kg mol⁻¹, w₂ = 1 g, w₁ = 100 g, and ΔTf = 0.186 K, what is the molar mass M?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryWhich colligative property can be measured at room temperature for molar mass determination?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 18Easy ChemistryWhich relation gives the number of moles from mass during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIf 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 18Easy ChemistryIn molar-mass determination using boiling-point elevation, K₍b₎ is a property of which substance?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIn molar-mass determination using freezing-point depression, K₍f₎ is a property of which substance?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIn a solution, 0.5 g of solute corresponds to 0.005 mol. What is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryA 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 18Easy ChemistryA 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 18Easy ChemistryIf 2 g of a solute contains 0.02 mol, what is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIf 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 18Easy ChemistryWhy may acetic acid show a higher observed molar mass in benzene?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryWhy may the observed molar mass of NaCl be lower than its true molar mass during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryWhich solute will show normal colligative behaviour during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy