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Class 12 · Chemistry
→A solution shows i = 1.9. Which situation matches this value?
Class 12 · Chemistry
→An XY electrolyte has i = 1.72. If its formal concentration is 0.25 M, what is the effective particle concentration?
Class 12 · Chemistry
→Twenty percent of a solute’s particles form dimers and 40% form tetramers. The rest remain single. What is i?
Class 12 · Chemistry
→If the apparent molar mass is 60% greater than the true molar mass, what is the approximate value of i?
Class 12 · Chemistry
→For a solute with i = 0.70 that forms only trimers, what is the degree of association?
Class 12 · Chemistry
→Out of 100 initial AB2 units, 35 units dissociate. What is the total number of effective particles?
Class 12 · Chemistry
→An MCl₃ salt has i = 2.8. What is its apparent molar mass compared with its true molar mass?
Class 12 · Chemistry
→If Kb = 0.60 K kg mol−1, m = 0.20 mol kg−1, and the observed boiling-point elevation is 0.18 K, what is i?
Class 12 · Chemistry
→A 0.04 M solution has osmotic pressure 1.476 atm at 300 K. Taking R = 0.082 L atm mol−1 K−1, what is i?
Class 12 · Chemistry
→Forty-five percent of a solute A forms A3. What is the value of i?
Class 12 · Chemistry
→The lowering of vapour pressure in a solution is 2.4 times the normal value. If the solute is AB2, what is the degree of dissociation?
Class 12 · Chemistry
→A colligative experiment gives an apparent molar mass of 300 g mol−1, while the true molar mass is 150 g mol−1. Which conclusion is most appropriate?
Class 12 · Chemistry
→A solution has i = 2.05. If the solute is of the A2B type, what is the degree of dissociation?
Class 12 · Chemistry
→A solute forms trimers completely. What is the ratio of apparent molar mass to true molar mass?
Class 12 · Chemistry
→If a colligative property of an AB3 solution is 120% higher than its normal value, what is the degree of dissociation?
Class 12 · Chemistry
→An MX4 salt is 45% dissociated. What fraction of the true molar mass is its apparent molar mass?
Class 12 · Chemistry
→An acid has a true molar mass of 122 g mol−1, but its apparent molar mass in benzene is 200 g mol−1. If only dimers form, what is the approximate degree of association?
Class 12 · Chemistry
→For a 0.15 mol kg−1 solution, Kf = 2.0 K kg mol−1 and the observed freezing-point depression is 0.54 K. If the solute dissociates into two ions, what is the degree of dissociation?
Class 12 · Chemistry
→A solute has i = 0.8125 and forms only tetramers. What is the degree of association?
Class 12 · Chemistry
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