Why `wedge_(m)^(@)` for weak electrolyte `(e.g., NH_(4)OH` or `CH_(3)COOH)` cannot be determined experimentally ?

Explanation

To understand why the molar conductivity (denoted as `wedge_(m)^(@)`) for weak electrolytes such as ammonium hydroxide (NH₄OH) or acetic acid (CH₃COOH) cannot be determined experimentally, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Definition of Weak Electrolytes**:
- Weak electrolytes are substances that partially dissociate into ions in solution. For example, NH₄OH and CH₃COOH only dissociate to a small extent, meaning that not all of the molecules break apart into ions.

2. **Debye-Hückel-Onsager Equation**:
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