Molar Conductivity Formula:
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Definition: Molar conductivity is the conducting power of all the ions produced by dissolving one mole of an electrolyte in solution.
Purpose: It helps in understanding the conducting ability of electrolytes in solution and is used in electrochemistry studies.
The calculator uses the formula:
Where:
Explanation: The specific conductance is multiplied by the molar volume to obtain the molar conductivity.
Details: Molar conductivity measurements are crucial for understanding electrolyte behavior, determining ionic mobilities, and studying solution properties.
Tips: Enter the specific conductance in S/m and molar volume in m³/mol (default 22.4 for ideal gases at STP). All values must be > 0.
Q1: What are typical values for specific conductance?
A: For strong electrolytes, κ typically ranges from 0.01 to 10 S/m depending on concentration.
Q2: Why is molar volume important?
A: Molar volume relates the conductance to the amount of substance, allowing comparison between different electrolytes.
Q3: How does temperature affect molar conductivity?
A: Molar conductivity generally increases with temperature as ion mobility increases.
Q4: What's the difference between molar and equivalent conductivity?
A: Equivalent conductivity is molar conductivity divided by the number of equivalents per mole.
Q5: Can this calculator be used for weak electrolytes?
A: Yes, but note that weak electrolytes don't fully dissociate, so results may differ from strong electrolytes.