(a)[2]
Calculate the energy released when 9.60 g of sulfur is burned.
(b)[1]
Construct the ionic equation for the reaction of sulfur dioxide with aqueous sodium hydroxide to produce hydrogensulfite ions, $\text{HSO}_3^{-}$.
(c)[2]
Explain why the reaction occurs faster with ethanoic acid than with hydrogensulfite ions.
(d)[2]
Calculate the volume of $0.10\,\text{mol dm}^{-3}$ sodium hydroxide that contains 3.2 g of sodium hydroxide.