Dear expert...
I m facing problem in converting oxidation states into charges of these IUPAC name...please explain stepwise...

Dear expert... I m facing problem in converting oxidation states into charges of these IUPAC name...please explain stepwise... page 244 v Q9.1: Write the formulas for the following coordination compounds (i) Tetraamminediaquacobalt(lll) chloride (ii) Potassium tetracyanonickelate(ll) (iii) Tris(ethane- 1 ,2-diamine) chromium(lll) chloride (iv) AmminebromidochIoridonitrito-N- platinate(ll) Dichloridobis(ethane-1,2-diamine)pIatinum(lV) nitrate (vi) Iron(lll) hexacyanoferrate(ll) Solution