From the following reaction sequence
`Cl_2 + 2KOH to KCl + KClO + H_2O`
`3KClO to 2KCl + KClO_3`
`4KClO_3 to 3KClO_4 + KCl`
Calculate the mass of chlorine needed to produce 100 g of `KClO_4`

Explanation

To calculate the mass of chlorine needed to produce 100 g of KClO₄, we will follow these steps:

### Step 1: Write the overall reaction
We have three reactions given:

1. \( \text{Cl}_2 + 2 \text{KOH} \rightarrow \text{KCl} + \text{KClO} + \text{H}_2\text{O} \)
2. \( 3 \text{KClO} \rightarrow 2 \text{KCl} + \text{KClO}_3 \)
3. \( 4 \text{KClO}_3 \rightarrow 3 \text{KClO}_4 + \text{KCl} \)
...