Answer
a/ hexaamminechromium (III)
b/ triamminetrichloroplatinum (IV)
c/ hexaaquamolybdenum (Ill).
d/ hexacyanochromate (II)
Work Step by Step
Number of moles is the subscript following each element or ligand.
Note in a,b,c, metal comes in cation, so the name end with metal name. in d/ crom comes with anion so the name has -ate
a/ one mole of [Cr(NH 3)6]3+, and three moles of Br-. Name is hexaamminechromium (III)
b/ one mole of [Pt(NH3)3Cl3]+, one mole of Cl-. Name is triamminetrichloroplatinum (IV)
c/ one mole of [Mo(H20)6] 3+ , three moles of Br-. Name is hexaaquamolybdenum (Ill).
d/ four moles of K+, one mole of [Cr(CN) 6]4-. Name is hexacyanochromate (II)
