On adding 0.1 M solution each of Ag^(+), Ba^(2+), Ca^(2+) ions in a Na_(2)SO_(4) solution, species first precipitated is(K_(sp)BaSO_(4)=10^(-11), K_(sp) CaSO_(4)=10^(-6), K_(sp)Ag_(2)SO_(4)=10^(-5))

On adding 0.1 M solution each of Ag^(+), Ba^(2+), Ca^(2+) ions in a Na

1.	On adding 0.1 M solution each of Ag^(+), Ba^(2+), Ca^(2+) ions in a Na_(2)SO_(4) solution, species first precipitated is(K_(sp)BaSO_(4)=10^(-11), K_(sp) CaSO_(4)=10^(-6), K_(sp)Ag_(2)SO_(4)=10^(-5))
Answer» `Ag_(2)SO_(4)` `BaSO_(4)` `CaSO_(4)` all of these Solution :`K_(sp)` for `Ag_(2)SO_(4)=[Ag^(+)]^(2)[SO_(4)^(2-)]` `:. [SO_(4)^(2-)]` for precipitation of`Ag_(2)SO_(4) lt (K_(sp))/([Ag^(+)]^(2))=(10^(-5))/((0.1)^(2))=10^(-3)M` SIMILARLY, `[SO_(4)^(2-)]` for precipitation of `BaSO_(4) lt (K_(sp))/([Ba^(2+)])=(10^(-11))/(0.1)=10^(-10)M` `[SO_(4)^(2-)]` for precipitation of `CaSO_(4) lt (K_(sp))/([CA^(2+)])=(10^(-6))/(0.1)=10^(-5)M` Thus, minimum `[SO_(4)^(2-)]` reuired for precipitaion is for `BaSO_(4)`.