At certain temperature and infinite dilution , the equivalent conductances of sodium benzoate , hydrochloric acid , and sodium chloride are 240 , 349

Question

At certain temperature and infinite dilution , the equivalent conductances of sodium benzoate , hydrochloric acid , and sodium chloride are 240 , 349

At certain temperature and infinite dilution , the equivalent conductances of sodium benzoate , hydrochloric acid , and sodium chloride are 240 , 349 and `229 Omega^(-1) cm^(2) eq^(-1)` respectively . The equivalent conductance of benzoic acid in `Omega^(-1) cm^(2) eq^(-1)` at the same condition is
A. 80
B. 328
C. 360
D. 408

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`Lambda_(C_(6)H_(5) COOH)^(@) = Lambda_(C_(6)H_(5) COONa)^(@) + Lambda_(HCl)^(@) - Lambda_(NaCl)^(@)`
`Lambda_(C_(6)H_(5) COOH)^(@) = 240 + 349 - 229`
`Lambda_(C_(6)H_(5) COOH)^(@) = 240 + 349 - 229`
`Lambda_(C_(6)H_(5)COOH)^(@) = 360 Omega^(-1) cm^(2) eq^(-1)`

5 views Answered 2023-02-05 15:29