The depression in freezing point observed for a formic acid solution of concentration 0.5 mL L-1 is
Density of formic acid is 1.05 g mL-1. The Van’t Hoff factor of the formic acid solution is nearly: (Given for water
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The depression in freezing point observed for a formic acid solution of concentration 0.5 mL L-1 is Density of formic acid is 1.05 g mL-1. The Van’t Hoff factor of the formic acid solution is nearly: (Given for water )
Option 1 -
0.8
Option 2 -
1.1
Option 3 -
1.9
Option 4 -
2.4
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1 Answer
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Correct Option - 3
Detailed Solution:Let we take of solution
Mass of solute = Volume × Density
= 0.5
= 0.525 gram
Mass of solution = 1 kg. [considering very dilute solution]
Mass of solvent = 1000 – 0.525 = 999.475 gram
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