The compound K[PtCl₃(C₂H₄)] was first prepared by a Danish pharmacist around 1830. Scientists have only recently determined its structure. This complex is now known to be the first example of an important class of compounds known as organometallics. It can be prepared by the reaction of K₂[PtCl₄] with ethylene, C₂H₄. Th e other product is potassium chloride.

(a) What mass of K[PtCl₃(C₂H₄)] can be prepared from 45.8 g K₂[PtCl₄] and 12.5 g ethylene?
(b) Identify the reactant present in excess and calculate the mass of it that remains at the end of the reaction.

Transcribed Image Text:

Pt Cl Model of [PtC13(C₂H4)]¯. - H с