KVPY2016ChemistryElectrochemistry
The specific conductance ( ) of 0.02 M aqueous acetic acid solution at 298 ~K is 1.65 10⁻⁴ ~S ~cm ⁻¹ . The degree of dissociation of acetic acid is [Given : equivalent conductance at infinite dilution of H ⁺=349.1 ~S ~cm ² ~mol ⁻¹ and CH ₃ COO ⁻=40.9 ~S ~cm ² . mol ⁻¹ ]
Options
- A0.021
- B0.21
- C0.012
- D0.12
Correct answer
A. 0.021
Step-by-step solution
_ M = 1000 K M = 1000 1.65 10⁻⁴ 0.2 =8.25 _ H ^ = _ M ^ ( H ⁺ )+ _ M ^ ( CH ₃ COO ⁻ )=349.1+40.9=390 = 8.25 390 =.0211