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Class 12 · Chemistry · Medium
→At the same temperature, what molarity of NaCl solution will be isotonic with a 0.2 M glucose solution, if NaCl dissociates completely?
Class 12 · Chemistry · Medium
→When 3 g of a non-dissociated solute is dissolved in 100 g of solvent, the boiling point rises by 0.156 K. If Kb = 0.52 K kg mol⁻¹, what is the molar mass of the solute?
Class 12 · Chemistry · Medium
→If Al₂(SO₄)₃ dissociates completely into ions in dilute aqueous solution, what is the ideal value of the van’t Hoff factor (i)?
Class 12 · Chemistry · Easy
→Among aqueous solutions of equal molality, assuming complete ionisation, which solute solution will show the greatest depression in freezing point?
Class 12 · Chemistry · Medium
→If the true molar mass of a solute is 120 g mol⁻¹ and the observed molar mass from a colligative property is 80 g mol⁻¹, what is the value of (i)?
Class 12 · Chemistry · Medium
→While calculating molar mass from colligative properties, if the solute dissociates into ions, what error occurs if (i) is not used?
Class 12 · Chemistry · Easy
→When abnormal molar mass is obtained, which correction is included in colligative property formulas?
Class 12 · Chemistry · Easy
→If the mole fraction of solute in a solution is very small, how will the relative lowering of vapour pressure be?
Class 12 · Chemistry · Medium
→What will happen if a blood cell is placed in a hypotonic solution?
Class 12 · Chemistry · Medium
→What happens when a blood cell is placed in a hypertonic solution?
Class 12 · Chemistry · Medium
→Why is the value of i for a weak electrolyte lower than the ideal value for complete dissociation?
Class 12 · Chemistry · Medium
→For a solution, the experimentally observed depression in freezing point is less than the ideally calculated value, and the van’t Hoff factor is i < 1. Which phenomenon does this indicate?
Class 12 · Chemistry · Medium
→Which statement is correct about the colligative property related to Raoult’s law?
Class 12 · Chemistry · Easy
→If Kf and molality are known, how is the depression in freezing point found for a non-dissociating solute?
Class 12 · Chemistry · Medium
→Assuming complete ionisation, which solute will have the highest van’t Hoff factor in aqueous solutions of equal molality?
Class 12 · Chemistry · Easy
→A solution contains 0.5 mol of solute dissolved in 1 kg of solvent. What is its molality?
Class 12 · Chemistry · Medium
→If a 0.2 molal non-dissociating solute produces a certain depression in freezing point, what will be the ideal depression in freezing point for a 0.2 molal NaCl solution?
Class 12 · Chemistry · Medium
→While determining molar mass from osmotic pressure, which precaution is most important?
Class 12 · Chemistry · Easy
→Why does ice appear to melt faster when salt is sprinkled on it?
Class 12 · Chemistry · Easy
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