Chemistry 9701 · AS & A Level · Nitrogen and sulfur
Nitrogen and sulfur — practice question
Ammonium nitrate and calcium carbonate are formed when calcium nitrate, $\text{Ca(NO}_3)_2$, reacts with ammonia, carbon dioxide and water.
$\text{Ca(NO}_3)_2 + 2\text{NH}_3 + \text{CO}_2 + \text{H}_2\text{O} \rightarrow 2\text{NH}_4\text{NO}_3 + \text{CaCO}_3$
(a)[1]
Explain why ammonia is classed as a Brønsted-Lowry base in this reaction.
(b)[2]
State two reasons why this mixture of products is added to some soils.
(c)[3]
Complete the table by giving the shape and bond angle for each species: $\text{CO}_2$, $\text{NH}_3$, $\text{H}_2\text{O}$.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Takes in a proton / $H^+$ ion” …