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Abnormal Molar Mass

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

ChemistryAn electrolyte of the type A₂B₃ has a van’t Hoff factor (i) of 3.4. On complete dissociation, one formula unit produces five particles. What is the degree of dissociation of the electrolyte?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17MediumChemistryIf the observed molar mass of a solute is 1.6 times the true molar mass, what is the van’t Hoff factor and the probable behaviour of the solute?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17HardChemistryIf the observed molar mass of a solute is 0.4 times the true molar mass, what is the van’t Hoff factor and the probable behaviour of the solute?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17HardChemistryThe observed molar mass of an A₂B-type solute is 1/2.4 of its true molar mass. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17HardChemistryA solution has an actual molarity of 0.03 M and a van’t Hoff factor of 1.8. If the true molar mass of the solute is 180 g mol⁻¹, what observed molar mass would be obtained by a colligative-property method?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17MediumChemistryAn AB₃-type solute is 40% dissociated. If its observed molar mass is 62.5 g mol⁻¹, what is its true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17HardChemistryA solute forms dimers. Its true molar mass is 120 g mol⁻¹ and its observed molar mass is 150 g mol⁻¹. What is the degree of association?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17HardChemistryThe true molar mass of MgCl₂ is 95 g mol⁻¹. If its observed molar mass from a colligative-property method is 47.5 g mol⁻¹, what is the degree of dissociation?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17HardChemistryIf an AB₂ solute has a van’t Hoff factor of 2.2 and a true molar mass of 132 g mol⁻¹, what are its observed molar mass and degree of dissociation, respectively?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryAn AB solute has a van’t Hoff factor of 1.4 and an observed molar mass of 75 g mol⁻¹. What are its true molar mass and degree of dissociation, respectively?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryAn AB₂ solute has a true molar mass of 120 g mol⁻¹ and is 80% dissociated. What will be its observed molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16HardChemistryThe true molar mass of a solute is 150 g mol⁻¹, but its molar mass determined by a colligative-property method is 100 g mol⁻¹. What is the van’t Hoff factor, and what is the probable behaviour of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16MediumChemistryIf a solution has a true molality of 0.2 m and its van’t Hoff factor is 2, what molality would appear to be obtained from a colligative property if the i correction were ignored?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 16MediumChemistryAn A₂B₃-type solute has a van’t Hoff factor i = 3. If complete dissociation produces five particles, what is the degree of dissociation?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16HardChemistryIf the observed molar mass of a solute is 0.625 times its true molar mass, what are the van’t Hoff factor (i) and the type of behaviour shown by the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16HardChemistryA substance forms trimers and is 30% associated. If its true molar mass is 90 g mol⁻¹, what will be the approximate observed molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16HardChemistryA 750 mL sample of a 0.02 M solution contains 3.0 g of solute. If i = 1.25 and the given molarity is the actual solute molarity, what is the observed molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 16HardChemistryThe observed molar mass of an AB3-type solute is 4/7 of the true value. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16HardChemistryThe true molar mass of AlCl3 is 133.5 g mol−1. If the observed molar mass from a colligative method is 44.5 g mol−1, what is the degree of dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 16HardChemistryThe normal molar mass of a solute is 180 g mol⁻¹, while its observed molar mass in solution is 72 g mol⁻¹. If the solute is of the type AB₂, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Hard