Diagram 3 shows the formation of ammonium sulphate
State the names of Process X and Substance Y.
Write a balanced chemical equation for the reaction between ammonia and sulphuric acid.
Calculate the percentage of nitrogen by mass in ammonium sulphate (NH4)2SO4.
[Relative atomic mass/Jisim atom relatif: N,14;O,16;S,32;H;1]