Electrolytic conductivity of 0.20 mol L^–1 solution of KCl at 298 k is 2.48 x 10^–2 ohm^–1cm^–1. Calculate its molar conductivity.

Solution

we have given that
electrolyitc conductivity =0.20mol/L
conductivity = 2.48 x 10^-2 ohm^-1cm^-1
thus apply the formula

$Λ_{m} = \frac{k \times 1000}{M}$

$M = \frac{k \times 1000}{Λ_{m}} M = \frac{2.48 \times 10^{- 2} \times 1000}{0.20}$

here M is molar conductivity.

Ans. 124 ohm^–1 cm² mol^–1

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The molar conductivity of 0.025 mol L^–1methanoic acid is 46.1 S cm² mol^–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H⁺) = 349.6 S cm²mol^–1 and λ° (HCOO^– ) = 54.6 s cm² mol^–1.

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Electrochemistry

Electrolytic conductivity of 0.20 mol L^–1 solution of KCl at 298 k is 2.48 x 10^–2 ohm^–1cm^–1. Calculate its molar conductivity.

Some More Questions From Electrochemistry Chapter

Why does the conductivity of a solution decrease with dilution?

Suggest a way to determine the Λ°_m value of water.

The molar conductivity of 0.025 mol L^–1methanoic acid is 46.1 S cm² mol^–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H⁺) = 349.6 S cm²mol^–1 and λ° (HCOO^– ) = 54.6 s cm² mol^–1.

If the current of 0.5 ampere flows through a metallic wire for 2 hours, then how many electrons flow through the wire?

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Consider the reaction: Cr₂O₇^2– + 14H⁺ + 6e- → 2Cr³⁺ + 8H₂O
What is the quantity of electricity in coulombs needed to reduce 1 mol of Cr₂O₇^2-?

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For Daily Free Study Material Join wiredfaculty

Electrochemistry

Electrolytic conductivity of 0.20 mol L–1 solution of KCl at 298 k is 2.48 x 10–2 ohm–1cm–1. Calculate its molar conductivity.

Some More Questions From Electrochemistry Chapter

Why does the conductivity of a solution decrease with dilution?

Suggest a way to determine the Λ°m value of water.

The molar conductivity of 0.025 mol L–1 methanoic acid is 46.1 S cm2 mol–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H+) = 349.6 S cm2 mol–1 and λ° (HCOO– ) = 54.6 s cm2 mol–1.

If the current of 0.5 ampere flows through a metallic wire for 2 hours, then how many electrons flow through the wire?

Suggest a list of metals that are extracted electrolytically.

Consider the reaction: Cr2O72– + 14H+ + 6e- → 2Cr3+ + 8H2OWhat is the quantity of electricity in coulombs needed to reduce 1 mol of Cr2O72-?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Electrolytic conductivity of 0.20 mol L^–1 solution of KCl at 298 k is 2.48 x 10^–2 ohm^–1cm^–1. Calculate its molar conductivity.

Suggest a way to determine the Λ°_m value of water.

The molar conductivity of 0.025 mol L^–1methanoic acid is 46.1 S cm² mol^–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H⁺) = 349.6 S cm²mol^–1 and λ° (HCOO^– ) = 54.6 s cm² mol^–1.

Consider the reaction: Cr₂O₇^2– + 14H⁺ + 6e- → 2Cr³⁺ + 8H₂O
What is the quantity of electricity in coulombs needed to reduce 1 mol of Cr₂O₇^2-?