Molal depression constant for a solvent is 4.0 K kg mol⁻¹. The depression in the freezing point of the solvent for 0.03…
Solutions · Class 12 · JEE Main Previous Year Question
Molal depression constant for a solvent is 4.0 K kg mol⁻¹. The depression in the freezing point of the solvent for 0.03 mol kg⁻¹ solution of is:
(Assume complete dissociation of the electrolyte)
- a✓
0.36 K
- b
0.24 K
- c
0.18 K
- d
0.12 K
0.36 K
Strategy:\n> Freezing point depression is calculated using . Identify the van't Hoff factor for the completely dissociated salt.\n\nStep 1: Identify } i \text{ for } \ce{K2SO4} \text{\n\nTotal ions () = 3. Since dissociation is complete, .\n\nStep 2: Calculate } \Delta T_f \text{\n\n\n\n
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