A solution contains both Ag^+ (0.30 M) and Ba^(2+)(0.05 M).(i) If solid Na_2 SO_4is added very slowly to this solution, which will precipitate first, Ag_2SO_4 or BaSO_4?(ii) The addition of Na_2SO_4is continued until the second cation just starts precipitating as sulphate. What is the concentration of the first cation at this point?K_(sp)(Ag_2SO_4) = 1.2 xx 10^(-5), K_(sp)(BaSO_4) = 1.5 xx 10^(-9) .

A solution contains both Ag^+ (0.30 M) and Ba^(2+)(0.05 M).(i) If soli

1.	A solution contains both Ag^+ (0.30 M) and Ba^(2+)(0.05 M).(i) If solid Na_2 SO_4is added very slowly to this solution, which will precipitate first, Ag_2SO_4 or BaSO_4?(ii) The addition of Na_2SO_4is continued until the second cation just starts precipitating as sulphate. What is the concentration of the first cation at this point?K_(sp)(Ag_2SO_4) = 1.2 xx 10^(-5), K_(sp)(BaSO_4) = 1.5 xx 10^(-9) .
Answer» SOLUTION :`BaSO_4, 1.15 XX 10^(-5) M`