Weak electrolyte: degree of dissociation from conductivity (α = Λm / Λm° (Ostwald-type use at low concentration))
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α = Λm / Λm° (Ostwald-type use at low concentration)
What each symbol means
| Symbol | What it stands for |
|---|---|
| \alpha | Degree of dissociation |
| \Lambda_{\mathrm{m}} | Molar conductivity at given c |
| \Lambda_{\mathrm{m}}^\circ | Limiting molar conductivity if fully ionised |
When to use this
Approximate for weak electrolytes when ion pairing neglected; Λm° from ion sum or strong electrolyte analogy.