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Abnormal Molecular Mass

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

ChemistryWhile determining molar mass by the lowering of vapour pressure method, if a solute undergoes complete dimerisation in benzene, how will its observed molar mass compare with its true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16MediumChemistryIf NaCl is completely dissociated and its true molar mass is 58.5 g mol^-1, what will be its ideal observed molar mass approximately?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16MediumChemistryThe true molar mass of a substance is 60 g mol^-1, but the freezing-point method gives an observed molar mass of 30 g mol^-1. What is the value of the van't Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16MediumChemistryIf the true molar mass is 120 g mol^-1 and the van't Hoff factor i = 2 for a solute, what observed molar mass will be obtained from a colligative-property measurement?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16MediumChemistryIn which case is it safest to treat the observed molar mass as the normal molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryIf the normal molar mass is 60 g mol⁻¹ and the observed molar mass is 120 g mol⁻¹, what is the van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryIf the observed molar mass of a substance is 60 g mol⁻¹ and its normal molar mass is 120 g mol⁻¹, what is the van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryIf i = 0.5, how will the observed molar mass compare with the normal molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryIf i = 2, how will the observed molar mass compare with the normal molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryWhich relation is correct between the van't Hoff factor (i) and molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryIf a solute associates during molar-mass determination, how is the observed molar mass generally found?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18EasyChemistryWhy does the factor 1000 appear in molar-mass determination formulas using molality?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17EasyChemistryIf the normal molar mass is 60 g mol⁻¹ and the observed molar mass is 120 g mol⁻¹, which process is possible?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17EasyChemistryIf the normal molar mass is 100 g mol⁻¹ and the observed molar mass is 50 g mol⁻¹, what is the Van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17EasyChemistryIf the normal molar mass is 180 g mol⁻¹ and the observed molar mass is 180 g mol⁻¹, what is the Van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17EasyChemistryA student determines the molar mass of a solute by the osmotic pressure method. If the solute undergoes dimerisation in solution, which conclusion about the calculated molar mass is correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17EasyChemistryWhich factor is used to explain abnormal molar mass properly?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17EasyChemistryIn which situation is the molar-mass value called abnormal?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17MediumChemistryWhen is it necessary to use the van’t Hoff factor i in molar-mass determination?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16EasyChemistryIf the observed molar mass of a solute is twice its true molar mass, what is the value of the van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16Medium

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