What volume of air containing `21%` of oxygen by volume is required to completely burn `1 Kg` of sulphur `(S_(8))` which contains `4%` incombustible material? Sulphur burns according to the reaction
`(1)/(2)S_(8)+O_(2) rarr SO_(2)`

Explanation

To solve the problem, we need to determine the volume of air required to completely burn 1 kg of sulfur (S₈) that contains 4% incombustible material. The reaction for the combustion of sulfur is given as:

\[ \frac{1}{2} S_8 + O_2 \rightarrow SO_2 \]

### Step-by-step Solution:

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