1.216 gm of an organic compound was reacted under Kjeldahl's method and the ammonia evolved was absorbed in 100 ml `NH_2SO_4`. The remaining acid solution was made up to 500 ml by the addition of water. Twenty millilitres of the dilute solution required 32 ml `(N)/(10)` caustic soda solution for complete neutralisation. Calculate the percentage of nitrogen in the compound.

Explanation

To calculate the percentage of nitrogen in the organic compound using the Kjeldahl's method, we will follow these steps:

### Step 1: Determine the total volume of NaOH required for neutralization
From the problem, we know that 20 ml of the dilute sulfuric acid solution required 32 ml of \( \frac{N}{10} \) NaOH for complete neutralization.

To find out how much NaOH is needed for the entire 500 ml of the acid solution, we can set up a proportion:
\[
\text{Total NaOH required} = \left(\frac{32 \, \text{ml}}{20 \, \text{ml}}\right) \times 500 \, \text{ml} = 800 \, \text{ml}
...