Copper pyrites, `CuFeS_(2)`, is the important source of copper 10 gm of it was leached with dil. `H_(2)SO_(4)` and solution diluted to 1L. 10 mL of this solution required 10 mL of 0.02 M `KMnO_(4)` is acidic medium. What is the % of Fe in copper pyrite.

Explanation

To find the percentage of iron (Fe) in copper pyrites (CuFeS₂), we will follow these steps:

### Step 1: Write the reaction
The reaction of copper pyrites with dilute sulfuric acid can be represented as follows:
\[ \text{CuFeS}_2 + 2 \text{H}_2\text{SO}_4 \rightarrow \text{CuSO}_4 + \text{FeSO}_4 + 2 \text{H}_2\text{S} \]

### Step 2: Determine the moles of KMnO₄ used
Given that 10 mL of the solution required 10 mL of 0.02 M KMnO₄, we first calculate the moles of KMnO₄ used:
...