In the preparation of ammonia in industry, the raw materials are nitrogen and hydrogen. These are mixed together in the correct proportions needed to form ammonia.
How much hydrogen would there be in 400 litres of the gaseous mixture required for the manufacture of ammonia ?

Explanation

To solve the problem of how much hydrogen would be in 400 liters of the gaseous mixture required for the manufacture of ammonia, we can follow these steps:

### Step 1: Write the balanced chemical equation
The balanced chemical equation for the formation of ammonia (NH₃) from nitrogen (N₂) and hydrogen (H₂) is:
\[ N_2 + 3H_2 \rightarrow 2NH_3 \]
This tells us that 1 mole of nitrogen reacts with 3 moles of hydrogen to produce 2 moles of ammonia.
...