Conductance of NaCl at Infinite Dilution Calculator

Formula Used:

\[ \lambda_{NaCl} = \lambda_{Na^+} + \lambda_{Cl^-} \]

Conductance of NaCl at Infinite Dilution (λ_NaCl): Siemens

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1. What is Conductance of NaCl at Infinite Dilution?

Definition: This is the conductance of sodium chloride when it is completely (100%) ionized in solution at infinite dilution.

Purpose: It helps chemists and researchers understand the maximum ionic conductivity of NaCl in solution.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \lambda_{NaCl} = \lambda_{Na^+} + \lambda_{Cl^-} \]

Where:

\( \lambda_{NaCl} \) — Conductance of NaCl at infinite dilution (Siemens)
\( \lambda_{Na^+} \) — Conductance of sodium cation (Siemens)
\( \lambda_{Cl^-} \) — Conductance of chloride anion (Siemens)

Explanation: The total conductance is simply the sum of the individual ionic conductances.

3. Importance of Conductance Calculation

Details: Understanding ionic conductance helps in studying electrolyte solutions, designing electrochemical systems, and predicting solution behavior.

4. Using the Calculator

Tips: Enter the conductance values for both Na+ and Cl- ions in Siemens. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are typical values for ionic conductances?
A: At 25°C, λ(Na+) ≈ 50.1 S·cm²/mol and λ(Cl-) ≈ 76.3 S·cm²/mol in water.

Q2: Why measure at infinite dilution?
A: At infinite dilution, ions don't interact with each other, giving their maximum possible conductance.

Q3: How does temperature affect conductance?
A: Conductance generally increases with temperature as ion mobility increases.

Q4: What units should I use?
A: The calculator uses Siemens (S), but equivalent molar conductivities can be used if consistent.

Q5: Does this apply to other salts?
A: Yes, the same principle applies to any electrolyte (e.g., KCl, CaCl₂) with appropriate ion conductances.