Some 1.0 mol dm-3 solutions were mixed using equal volumes of each solution.
Which pair of solutions would give the greatest mass of solid?
Ba(OH)2\text{Ba(OH)}_2Ba(OH)2 and CuCl2\text{CuCl}_2CuCl2
Ba(OH)2\text{Ba(OH)}_2Ba(OH)2 and CuSO4\text{CuSO}_4CuSO4
Ba(OH)2\text{Ba(OH)}_2Ba(OH)2 and KCl\text{KCl}KCl
Ba(OH)2\text{Ba(OH)}_2Ba(OH)2 and K2SO4\text{K}_2\text{SO}_4K2SO4