Question

Solid AgNo3 is added slowly to solution of 0.001M Cl,Br,and I
a)
at what concentration of Ag will AgI precipitating?
at what concentration of Ag will AgCl precipitating?
at what concentration of Ag will AgBr precipitating?
b)
calculate the percent % of I ppt before reaching of AgBr?
calculate the percent % of Br ppt before reaching of AgCl?