The equation for making ammonia, $\text{NH}_3$, is given as: $\text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightarrow 2\text{NH}_3(\text{g})$. What mass of nitrogen is needed to produce 51 tonnes of ammonia?
- A21 tonnes
- B25.5 tonnes
- C42 tonnes
- D84 tonnes