Equal volumes of different 1.0 mol dm-3 aqueous solutions are mixed together.
Which pair of solutions produces the greatest mass of dry precipitate?
MgSO4(aq)\text{MgSO}_4\text{(aq)}MgSO4(aq) and Ba(OH)2(aq)\text{Ba(OH)}_2\text{(aq)}Ba(OH)2(aq)
Al2(SO4)3(aq)\text{Al}_2(\text{SO}_4)_3\text{(aq)}Al2(SO4)3(aq) and BaCl2(aq)\text{BaCl}_2\text{(aq)}BaCl2(aq)
Fe2(SO4)3(aq)\text{Fe}_2(\text{SO}_4)_3\text{(aq)}Fe2(SO4)3(aq) and NaOH(aq)\text{NaOH}\text{(aq)}NaOH(aq)
FeSO4(aq)\text{FeSO}_4\text{(aq)}FeSO4(aq) and Ba(OH)2(aq)\text{Ba(OH)}_2\text{(aq)}Ba(OH)2(aq)