2 g of benzoic acid (C 6 H 5 COOH) dissolved in 25 g of benzene shows a depression in freezing point equal to 1.62 K. Molal depression constant for benzene is 4.9 K kg mol –1 . What is the percentage association of acid if it forms dimer in solution?

Question

2 g of benzoic acid (C 6 H 5 COOH) dissolved in 25 g of benzene shows a depression in freezing point equal to 1.62 K. Molal depression constant for benzene is 4.9 K kg mol –1 . What is the percentage association of acid if it forms dimer in solution?, Degree of association of benzoic acid in benzene is 86.4 %, Degree of association of benzoic acid in benzene is 99.2 %, Degree of association of benzoic acid in benzene is 35.4 %, Degree of association of benzoic acid in benzene is 91.4 %

MARKS App · Accepted Answer

Correct Option is : (B) Degree of association of benzoic acid in benzene is 99.2 %

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