Calculate `lambda_(m)^(@)` for `NH_(4)OH` given that values of `lambda_(m)^(@)` for `Ba(OH)_(2) BaCI_(2) and NH_(4)CI as 523.28 280.0and 129.8 S cm^(2) mol^(-1)` respectively

Explanation

To calculate the molar conductance at infinite dilution (λ_m^(@)) for NH₄OH, we will use Kohlrausch's law, which states that the molar conductance of an electrolyte at infinite dilution is equal to the sum of the conductances of its individual ions.

### Step-by-Step Solution:

1. **Identify the ions in NH₄OH**:
- NH₄OH dissociates into NH₄⁺ and OH⁻ ions.

2. **Write down the known values**:
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