J.R. S. answered 02/11/22
Ph.D. University Professor with 10+ years Tutoring Experience
FeCl3(aq) + 3AgNO3 ==> 3AgCl(s) + Fe(NO3)3 ... balanced equation (note:your equation is wrong)
mols AgNO3 present = 60 ml x 1 L /1000 ml x 0.500 mol/L = 0.030 mols AgNO3
mols AgCl formed = 0.030 mols AgNO3 x 3 mols AgCl / 3 mol AgNO3= 0.030 mols AgCl formed
mass AgCl = 0.030 mols AgCl x 143 g /mol = 4.29 g