Which one has more anions in the forumla?

Question

Which one has more anions between:

(1) NaC2H3O3 and C6N6FeK

(2) Fe2(SO4)3 and Na2CrO4

Answer 1

(1) These are the same
for Sodium acetate:
Na(C2H3O3) --> Na+ + (C2H3O3)- [one acetate anion]

for Potassium ferricyanide:
(C6N6Fe)K (should have a -2 charge) --> (C6N6Fe)-3 + K+

the ferricyanide is usually written as [Fe(CN)6]-3
if ferrocyanide then, [Fe(CN)6]-4

(2) The Iron (III) sulfate
Fe2(SO4)3 --> 2 Fe+3 + 3 (SO4)-2 [three anions]
the Sodium chromate is
Na2CrO4 --> 2 Na+ + (CrO4)-2