alleryFor a weak electrolyte at concentration c, the degree of dissociation α can be approximated as:
Aα = Λ°_m / Λ_m
Bα = Λ_m × Λ°_m
Cα = Λ_m − Λ°_m
Dα = Λ_m / Λ°_m
Answer & Solution
Correct answer: D. α = Λ_m / Λ°_m
**α = Λ_m / Λ°_m**.
At infinite dilution α → 1 and Λ_m → Λ°_m.
**The acid dissociation constant follows:** K_a = cα²/(1−α).
Keep practising Unit 9B1: Electrochemical Cells and Standard Potentials
Browse all Unit 9B1: Electrochemical Cells and Standard Potentials questions for NEET UG, or explore more Chemistry topics.
Related questions
The de-Broglie wavelength associated with a particle of mass $10^{-6}$ kg with a velocity Rust is chemically:Rusting of iron is an electrochemical phenomenon. At the cathodic spot, the reaction is:In the H₂–O₂ fuel cell used in the Apollo space programme, the electrolyte is:The electrolyte in a lead storage battery (lead-acid) is approximately:During electrolysis of **aqueous** NaCl (brine), the products are:In the electrolysis of **molten** NaCl, the products at the cathode and anode respectivelyA CuSO₄ solution is electrolysed with 1.5 A for 10 minutes. The mass of copper (M = 63.5)