(b) One way in which the stoichiometry of a complex ion can be determined is by measuring the color intensities of solut

[answerhappygod]

(b) One way in which the stoichiometry of a complex ion can be
determined is by measuring the color intensities of solutions
containing different proportions of the ligand and metal ion. In
one such experiment, the maximum color intensity was observed when
5.2 cm3 of a 1 x 10-3 M manganese ion solution and 1.56 cm3 of a 1
x 10-2 M solution of ethylenediamine were mixed. Given that one
mole of a compound containing the complex ion from this mixture
produces three moles of silver chloride when the compound reacts
with excess silver nitrate, show whether the compound is
diamagnetic or paramagnetic.