a.) Assuming that a drop is 0.05 mL, how many drops of a 0.10 M KI solution must be added to 100 mL of 0.010 M Pb(NO3)2 to just get aprecipitate to form? (That is, how many drops of KI are required to just exceed the saturation concentration for PbI2?)
b.) 1.0 mL aliquot of 0.050M NaCl is added to 50 mL solution of 0.0010M AgNO3 (aq). What percentage of the silver will precipitate?