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Class 12 · Chemistry
→An AB₃ salt has an apparent molar mass of 50 g mol⁻¹ and a true molar mass of 125 g mol⁻¹. What is the degree of dissociation?
Class 12 · Chemistry
→A solution has i = 0.25. If the solute undergoes complete association, what type of group is formed?
Class 12 · Chemistry
→For partial dissociation of FeCl₃, the van’t Hoff factor is 3.1. What is the approximate degree of dissociation?
Class 12 · Chemistry
→A solute dissociates into two ions and its colligative property is 30% higher than normal. What is the degree of dissociation?
Class 12 · Chemistry
→A colligative property is 25% lower than its normal expected value. If the cause is dimer association, what is the degree of association?
Class 12 · Chemistry
→If a solute has i = 1, what is the most appropriate meaning in the context of abnormal molar mass?
Class 12 · Chemistry
→A salt M₂X has an apparent molar mass equal to 0.5 times its true molar mass. What is its degree of dissociation?
Class 12 · Chemistry
→An 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 12 · Chemistry
→A solute has i = 1.75. If it dissociates into two ions, what is its apparent molar mass compared with the true molar mass?
Class 12 · Chemistry
→A freezing-point depression experiment gives i = 2.7 for an unknown solute. If it is of type AB₂, what is the approximate degree of dissociation?
Class 12 · Chemistry
→For a solution, i = 0.70. Which statement is correct?
Class 12 · Chemistry
→An AB electrolyte is 40% dissociated. From 100 initial formula units, how many effective particles will be present?
Class 12 · Chemistry
→Twenty percent of a solute’s particles form dimers and 80% remain as single particles. Starting with 100 particles, what is the effective number of particles?
Class 12 · Chemistry
→In which case will the apparent molar mass be the highest?
Class 12 · Chemistry
→In which solution is the apparent molar mass most likely to be the lowest?
Class 12 · Chemistry
→Why is the osmotic pressure of a NaCl solution higher than that of a glucose solution of the same concentration?
Class 12 · Chemistry
→A solute A has 25% of its particles forming A₄. What is the value of i?
Class 12 · Chemistry
→A solute should normally show a freezing-point depression of 0.48 K, but the observed value is 0.24 K. If it forms only dimers, what is the degree of association?
Class 12 · Chemistry
→If AlCl₃ is 50% dissociated, what is its van’t Hoff factor?
Class 12 · Chemistry
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