If potassium ferrocyanide is 80% ionized, calculate van't Hoff factor.

Explanation

To solve the problem of calculating the van't Hoff factor for potassium ferrocyanide that is 80% ionized, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Degree of Ionization (α)**:
- Given that potassium ferrocyanide is 80% ionized, we can express this as a fraction:
\[
\alpha = \frac{80}{100} = 0.8
...