You are given a Range of values, e.g. 50% to 62% Cl- in an unknown

A. Given 0.2134 g of unk, how much 0.104 M AgNO3 is required to ensure precipitation of all the Cl-?
 
 

B. Given 0.2134 g of unk, what is the least amount of AgCl that will result, and can we weigh this amount accurately?