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Class 12 · Chemistry
→If 0.04 mol of AB3 undergoes complete dissociation, how many moles of effective particles are produced?
Class 12 · Chemistry
→An acid has i = 0.7 and undergoes only dimerisation. What is the percentage dimerisation?
Class 12 · Chemistry
→If Al2(SO4)3 is 40% dissociated, what is its van’t Hoff factor, i?
Class 12 · Chemistry
→At the same molality, a solution has a freezing-point depression 0.6 times that of a normal solute. What is its observed molar mass relative to the true molar mass?
Class 12 · Chemistry
→In a solution, MgCl2 is 85% dissociated. What is the value of i?
Class 12 · Chemistry
→Which observation most directly supports a higher molar mass caused by association?
Class 12 · Chemistry
→A substance X dissociates in water as X → P + Q + R + S to the extent of 20%. What is i?
Class 12 · Chemistry
→If 70% dimerisation occurs, approximately how many times the true molar mass will be observed?
Class 12 · Chemistry
→For an AB4-type salt, i = 3.0 is observed. What is the degree of dissociation?
Class 12 · Chemistry
→If the observed molar mass of a solute is 1.6 times its true molar mass, what is the value of i?
Class 12 · Chemistry
→In a solution, A2B is 40% dissociated. At the same molality, how many times is its osmotic pressure that of a normal non-electrolyte?
Class 12 · Chemistry
→A substance undergoes 25% trimerisation. What is its approximate van’t Hoff factor, i?
Class 12 · Chemistry
→An AB-type electrolyte undergoes 35% dissociation. What is its van’t Hoff factor, i?
Class 12 · Chemistry
→A solute has a true molar mass of 150 g mol−1, while the value measured by osmotic pressure is 100 g mol−1. What is i?
Class 12 · Chemistry
→When is the formula i = 1 + α(n − 1) appropriate?
Class 12 · Chemistry
→If a solute has i = 0.625 and undergoes only dimerisation, how many times the true molar mass will be observed?
Class 12 · Chemistry
→An A2B3 salt is 75% dissociated. What is its van’t Hoff factor, i?
Class 12 · Chemistry
→For a substance, i = 2.0. Which example explains this value most simply?
Class 12 · Chemistry
→If i = 0.8 and the substance undergoes only dimerisation, how will its boiling-point elevation compare with that of a normal solute at the same molality?
Class 12 · Chemistry
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