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Question 39

In the industrial production of nitric acid via the Ostwald process, ammonia ( $NH3\text{NH}_3$ ) is oxidised over a platinum-rhodium catalyst according to the equation:

4\text{NH}_3 + 5\text{O}_2 \rightarrow 4\text{NO} + 6\text{H}_2\text{O}

Calculate the volume of oxygen gas ( $O2\text{O}_2$ ) needed to react completely with $kg6.8\text{ kg}$ of ammonia.

(Relative atomic masses ( $A_r$ ): $H=1\text{H} = 1$ , $N=14\text{N} = 14$ ; the volume of one mole of gas is $dm324\text{ dm}^3$ .)

[5]

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3 Quantitative chemistry Questions

GCSE
Chemistry
3 Quantitative chemistry

3 Quantitative chemistry

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3 Quantitative chemistry

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Question 39

In the industrial production of nitric acid via the Ostwald process, ammonia ( $NH3\text{NH}_3$ ) is oxidised over a platinum-rhodium catalyst according to the equation:

4\text{NH}_3 + 5\text{O}_2 \rightarrow 4\text{NO} + 6\text{H}_2\text{O}

Calculate the volume of oxygen gas ( $O2\text{O}_2$ ) needed to react completely with $kg6.8\text{ kg}$ of ammonia.

(Relative atomic masses ( $A_r$ ): $H=1\text{H} = 1$ , $N=14\text{N} = 14$ ; the volume of one mole of gas is $dm324\text{ dm}^3$ .)

[5]

Markscheme

3 Quantitative chemistry Questions

GCSE
Chemistry
3 Quantitative chemistry