50 g caustic soda is completely converted into sodium chlorate and sodium chloride by the action of chlorine What weight of manganese dioxide and what volume of HCl (containing `300gL^(-1)`) were used for the production of necessary chlorine?

Explanation

To solve the problem, we will follow these steps:

### Step 1: Write the relevant chemical reactions
The two reactions involved in the process are:

1. The reaction of manganese dioxide (MnO₂) with hydrochloric acid (HCl) to produce chlorine gas (Cl₂):
\[
\text{MnO}_2 + 4 \text{HCl} \rightarrow \text{MnCl}_2 + \text{Cl}_2 + 2 \text{H}_2\text{O}
...