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When 12.2g of benzoic acid is dissolved ...

When 12.2g of benzoic acid is dissolved in 100g of water, the freezing point of solution was found to be -`0.93^(@)C`(`K_f`(`H_2O`)=1.86 `K kg mol^(-1)`. The number(n) of benzoic acid molecules associated (assuming 100% association) is ________.

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