Electrochemistry

Nernst Equation Calculator

$begin mathsize 36px style E subscript c e l l end subscript equals E to the power of o minus fraction numerator R T over denominator n F end fraction ln Q end style$

E_cell= Electromotive force of the cell ; E^o= Standard Electrode potential of the cell ; T = Temperature ; Q= Reaction Quotient; n = The number of electrons transferred per cell reaction; R = Gas constant ; F= Faraday's Constant

Kohlrausch’s law : Molar & Equivalent Conductivity at Infinite Dilution Calculator

$begin mathsize 48px style capital lambda to the power of o subscript e q end subscript equals lambda subscript plus to the power of o space plus space lambda subscript minus to the power of o space semicolon end style$

Λ^o_eq = Equivalence Conductivity at infinite dilution. λ^o₊ & λ ^o_- = Equivalence Conductivity of Cation and Anion;

Faraday's Law of Electrolysis Calculator

$begin mathsize 48px style W equals z. i. t end style$

W = Weight produced at an electrode ; z = Electrochemical equivalent i = Current ; t = Time ;

Equivalent weight Calculator

$begin mathsize 36px style E equals A over V end style$

E= Equivalent Weight; A= Atomic Weight ; V= valency ;

Nernst Potential (Equilibrium Potential) Calculator

$begin mathsize 36px style E to the power of o equals fraction numerator R. T over denominator n. F end fraction log K subscript a end style$

E^o= Standard Electrode Potential ; R = Gas Constant ; F = Faraday's Constant ; K_eq= Equilibrium Constant ; T = Temperature ; n = Number of electrons involved in the cell reaction ;

Ionic Strength Calculator

$begin mathsize 36px style I equals 1 half sum for i of c subscript i z subscript i squared space end style$

I = Ionic Strength ; c_i = concentration of the i^thion ; z_i = Charge of the i^th ion

Debye Hückel Activity Coefficient: Activity coefficient of an ion in a dilute solution

$begin mathsize 48px style log space f equals negative A z squared square root of I space end style$

I = Ionic Strength ; z = Charge number of an ionic specie ; f = Activity coefficient ;

A= A constant that depends on temperature.
(A is assumed to be 0.509 mol^-1/2kg-1/2 which corresponds to water at 25^oC)