Sulfur is one of the raw materials in the Contact process used to manufacture sulfuric acid. Name two further raw materials needed to make sulfuric acid.
Name the catalyst employed in the Contact process.
When dilute sulfuric acid is electrolysed using inert electrodes, oxygen is formed at the anode. Define the term electrolysis.
Construct the equation for the reaction occurring at the cathode.
Dilute sulfuric acid reacts with sodium hydroxide. $\text{H}_2\text{SO}_4 + 2\text{NaOH} \rightarrow \text{Na}_2\text{SO}_4 + 2\text{H}_2\text{O}$ A student adds $0.76\,\text{g}$ of solid sodium hydroxide to $45\,\text{cm}^3$ of $0.20\,\text{mol dm}^{-3}$ sulfuric acid. Show by calculation that the sodium hydroxide is in excess.
Aqueous sodium hydroxide is warmed with ammonium sulfate. State the names of the three products formed in this reaction.