When 2.085 g of a mixture consisting only of NaCl and NaI is dissolved in water and precipitated by excess AgNO3, the precipitate that is filtered and dried is 3.785 g.

a.) Find the % NaCl content of the mixture? (NaI:150 gmol-1, NaCl:58.5 gmol-1, AgI:235 gmol-1, AgCl:143.5 gmol-1).

b.) At what molarity will the dry precipitate be suspended with 100 mL of NH3, allowing AgCl to dissolve and completely separate from Agl? (pKb=5 for NH3).

Ksp(AgCl)=1010,Ksp(Agl)=1016,Kinst.(Ag(NH3)2+)=109AgCl+2NH3fAg(NH3)2++ClKdenge=0