How to Calculate Different Parameters of a Solution at an Electrode – Part 3

Conductivity or specific conductance (κ) of an electrolyte solution is a measure of its ability to conduct electricity.


Conductivity measurements routinely have many industrial and environmental applications as a quick, cheap and reliable way of measuring the ionic content in a solution. For one, the measurement of product conductivity is a typical way to continuously monitor and trend the water purification systems performance.

Conductivity is linked directly to the total dissolved solids (TDS) in many instances.

When concentration approaches zero, the molar conductivity is known as limiting molar conductivity.

Kohlrausch law of independent migration of ions states that limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte.

Question:

Λ0(m) for NaCl, HCl & NaAc are 126.4, 425.9 & 91.00 S cm2 mol–1 respectively. Calculate Λ0(m) for HAc.

Solution:



Click/tap to enlarge the image

Kung fu with Kohlrausch law❓ Let Chemaficionado know in the comments below or at mychemistryhomework@gmail.com❗

Reference:

‌Ncert. Chemistry : Textbook for Class XII - Part.I; National Council Of Educational Research And Training: New Delhi.

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