The specific conductance of 0.01 M solution of acetic acid was found to be 0.015 S m⁻¹ at 25˚C. Molar conductance of acetic acid at infinite dilution is 400 × 10⁻⁴ S m² mol⁻¹. The

Question

The specific conductance of 0.01 M solution of acetic acid was found to be 0.015 S m⁻¹ at 25˚C. Molar conductance of acetic acid at infinite dilution is 400 × 10⁻⁴ S m² mol⁻¹. The degree of dissociation of acetic acid will be:

Vimal Swarnkar · Accepted Answer

(b) 0.0375. Λm = κ/c = 0.015 S m⁻¹ / 10 mol m⁻³ = 1.5 × 10⁻³ S m² mol⁻¹. α = Λm/Λ°m = 1.5 × 10⁻³ / 400 × 10⁻⁴ = 0.0375 → (b). Trap: 0.01 M = 10 mol m⁻³.

Answer

(a) 0.375

Answer

(c) 0.00375

Answer

(d) 0.357

Geo-Scientist Prelims 2020 Chemistry Q77: The specific conductance of 0.01 M solution of acetic acid was…

QuestionElectrochemistry / degree of dissociation