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7 Abnormal Molecular Mass

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

ChemistryForty percent of a solute’s particles form dimers and 30% form trimers. The rest remain single. What is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 16Hard ChemistryAn AX3 electrolyte has an apparent molar mass equal to 0.40 times its true molar mass. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Medium ChemistryThe osmotic pressure of a solution is 0.65 times the normal value. If the solute forms only dimers, what is the degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Medium ChemistryAn AB2 salt undergoes 55% dissociation. What is its van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryThirty percent of a solute’s particles form tetramers. If the true molar mass is M, what is the approximate apparent molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Medium ChemistryA student assumes i = 1 for CaCl2, although the actual i is 2.5. How will the apparent molar mass compare with the true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryA solute has i = 2.25. If it is of the AB3 type, what is the ratio of apparent molar mass to true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryA solution should normally have an osmotic pressure of 1.20 atm, but its actual osmotic pressure is 0.90 atm. If the solute forms dimers, what is the degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Medium ChemistryFor a solute with i = 1.2, if it dissociates into three ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryA solute undergoes 80% tetramer association. If the normal freezing-point depression is 0.50 K, what is the observed depression?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Medium ChemistryThe true molar mass of an AB2 salt is 120 g mol−1. If 40% dissociation occurs, what is its apparent molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Medium ChemistryIf the apparent molar mass of a solute is 2.5 times its true molar mass, what is the van’t Hoff factor and what does it indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryAn AX₂ salt is 45% dissociated. From 200 initial formula units, how many effective particles will be present?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Medium ChemistryA solution has i = 0.90. Which explanation is most appropriate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Easy ChemistryA solute dissociates into two ions and its colligative property is 30% higher than normal. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Medium ChemistryA colligative property is 25% lower than its normal expected value. If the cause is dimer association, what is the degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryIf a solute has i = 1, what is the most appropriate meaning in the context of abnormal molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 6Easy ChemistryA salt M₂X has an apparent molar mass equal to 0.5 times its true molar mass. What is its degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Medium ChemistryAn acid has true molar mass 60 g mol⁻¹ and apparent molar mass 96 g mol⁻¹ in benzene. If it only forms dimers, what is the approximate degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 15Hard ChemistryA solute has i = 1.75. If it dissociates into two ions, what is its apparent molar mass compared with the true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Medium