At 25°C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ohm⁻¹ cm² mol⁻¹ and at infinite dilution its molar conductance is 238 ohm⁻¹ cm² mol⁻¹. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is

Question

Dr. Abubacker · Accepted Answer

[Solution from source] Degree of ionisation α = Λm/Λ°m = 9.54/238 = 0.04008, i.e. 4.008%. 40.8% comes from misplacing the decimal. Answer (3).

Q. At 25°C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ohm⁻¹ cm² mol⁻¹ and at infinite dilution its molar conductance is 238 ohm⁻¹ cm² mol⁻¹. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is

Explanation

Reviewed by Dr. Abubacker

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