Home
Class 12
CHEMISTRY
Using Kohlrausch law, calculate Lambda0 ...

Using Kohlrausch law, calculate `Lambda_0` for acetic acid, if `Lambda_0` value for hydrochloric acid, sodium chloride and sodium acetate are respectively 426, 126 and 91 `S cm^(2) mol^(-1).`

Text Solution

AI Generated Solution

To calculate the molar conductivity at infinite dilution (Λ₀) for acetic acid (CH₃COOH) using Kohlrausch's law, we can follow these steps: ### Step 1: Understand the components Kohlrausch's law states that the molar conductivity at infinite dilution of an electrolyte is the sum of the molar conductivities of its individual ions. We have the following electrolytes and their respective Λ₀ values: - Hydrochloric acid (HCl): Λ₀ = 426 S cm² mol⁻¹ - Sodium chloride (NaCl): Λ₀ = 126 S cm² mol⁻¹ - Sodium acetate (CH₃COONa): Λ₀ = 91 S cm² mol⁻¹ ...
Promotional Banner

Similar Questions

Explore conceptually related problems

If at 25^(@) the ionization constant of acetic acid is 2 xx 10^(5) the hydrolysis constant of sodium acetate will be

The equivalent conductances of sodium chloride, hydrochloric acid and sodium acetate at infinite dilution are 126.45, 426,16 and 91.0 ohm^(-1)cm^(2) equiv^(-1) , respectively, at 25^(@)C . Calculate the equivalent conductance of acetic acid at infinite dilution.

pK_(a) value for acetic acid at an experimental temperature is 5. The percentage hydrolysis of 0.1 M sodium acetate solution will be

Explain the following : The pH value of acetic acid increases on addition of a few drops of sodium acetate.

Why is it necessary to use acetic acid and not suplhuric acid for the acidification of sodium extract for testing suplhur by lead acetate test?

A hydrogen electrode X was placed in a buffer solution of sodium acetate ad acetic acid in the ratio a:b and another hydrogen electrode Y was placed in a buffer solution of sodium acetate ad acetic in the ratio b:a if reduction potential values for two cells are found to be E_(1) and E_(2) respectively w.r.t. standard hydrogen electrode, the pK_(a) value of the acid can be given as (A) (E_(1)-E_(2))/(0.118) (B). -(E_(1)+E_(2))/(0.118) (C). (E_(1))/(E_(2))xx0.118 (D). (E_(2)-E_(1))/(0.118)

Calculate the equivalent conductance of NH_4OH at infinite dilution using Kohlrausch law. Given that Lambda_(0) values of NaOH, NaCI and NH_4Cl are respectively 217.4, 108.9 and 129"ohm"^(-1) cm^(2) .

State Kohlrausch law of independent migration of ions. Write an expression for the molar conductivity of acetic acid at infinite dilution according to Kohlrausch law. {:((b),"Calculate",:,wedge^(@)m" for acetic acid."),(,"Given that",:,wedge^(@)m(HCl)=426 " S " "cm"^(2)mol^(-1)),(,,,wedge^(@) m(NaCl)=126 " S " cm^(2) mol^(-1)),(,,,wedge^(@) m(CH_(3)COONa)=91 " S " cm^(2)mol^(-1)):}

Calculate the pH of 0.05M sodium acetate solution, if the pK_(a) of acetic acid is 4.74 .

The conductivity of 0.001028 M acetic acid is 4.95xx10^(-5) S cm^(-1) . Calculate dissociation constant if wedge_(m)^(@) for acetic acid is 390.5 S cm^(2) mol ^(-1) .