NEET2009ChemistryElectrochemistryActual
The equivalent conductance of M 32 solution of a weak monobasic acid is 8.0 mho cm ^2 and at infinite dilution is 400 mho cm ^2 , The dissociation constant of this acid is -
Options
- A1.25 10⁻⁴
- B1.25 10⁻⁵
- C1.25 10⁻⁶
- D6.25 10⁻⁴
Correct answer
B. 1.25 10⁻⁵
Step-by-step solution
aligned = & A _ C A _ = 8 400 ~K _ a & = C ^2 & = 1 32 8 400 8 400 & =1.25 10⁻⁵ aligned