When 12.2 g of benzoic acid is dissolved in 100 g of water, the freezing point of solution was found to be

The number (n) of benzoic acid molecules associated (assuming 100% association) is .

Question

When 12.2 g of benzoic acid is dissolved in 100 g of water, the freezing point of solution was found to be

The number (n) of benzoic acid molecules associated (assuming 100% association) is .

Canvas Classes · Accepted Answer

Strategy:
 The vapor pressure of a solution containing two volatile components is given by .

Step 1: Define relationship

Step 2: Match with given data
If , then:
- .
- .
- .

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