0.2585g of an organic compound contaning iodine was heated with excess of strong nitric acid and silver nitrate in a carius tube. The precipitate of silver iodide was fitered, washed and dried its weight was found to be 0.3894g . Calculate the % of iodine in the compound.

Explanation

To calculate the percentage of iodine in the organic compound, we can follow these steps:

### Step 1: Determine the mass of silver iodide (AgI) produced.
The mass of silver iodide precipitate is given as 0.3894 g.

### Step 2: Calculate the molar mass of silver iodide (AgI).
The molar mass of AgI can be calculated as follows:
- Molar mass of silver (Ag) = 107.87 g/mol
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