Calculate the percentage of iron in potassium ferrocyanide. `K_(4)(Fe(CN)_(6)]` (K = 39, Fe = 56, C = 12, N = 14)

Explanation

To calculate the percentage of iron in potassium ferrocyanide \((K_4[Fe(CN)_6])\), we will follow these steps:

### Step 1: Determine the Molar Mass of Potassium Ferrocyanide
The formula for potassium ferrocyanide is \(K_4[Fe(CN)_6]\). We need to calculate the molar mass by adding the contributions from each element in the compound.

- **Potassium (K)**: There are 4 potassium atoms.
\[
\text{Molar mass of K} = 39 \, \text{g/mol}
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