In Fig. 4.1, complete the dot-and-cross diagram so that it shows the electronic structure of a nitrogen molecule. Include only outer-shell electrons.
State three usual conditions for the reaction between nitrogen and hydrogen in the Haber process.
Write the symbol equation for the chemical reaction in the Haber process.
Balance the symbol equation for this reaction. $4\text{NH}_3 + \ldots\text{O}_2 \rightleftharpoons \ldots\text{NO} + \ldots\text{H}_2\text{O}$
Give the oxidation number of nitrogen in: NH$_3$ NO
Define oxidation by reference to oxidation number.
Write a symbol equation for this chemical reaction.
Calculate the mass of ammonium sulfate produced by following these steps: Calculate the number of moles of NH$_3$(g) in 360 dm$^3$. Calculate the number of moles of (NH$_4$)$_2$SO$_4$ formed. Calculate the mass of (NH$_4$)$_2$SO$_4$ formed.