Iron(III) Chloride and Potassium Thiocyanate reaction

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The reaction between iron(III) chloride (FeCl3) and potassium thiocyanate (KSCN) produces thiocyantoiron(III) ion (FeSCN²⁺) and potassium chloride (KCl). The discussion clarifies that while the reactants are correctly identified, the formation of a coordination complex complicates the equation. It emphasizes the need to understand coordination complexes, which involve metal ions like iron bonding with thiocyanate ions. The stoichiometry of the complex is not a simple 1:1 ratio. A deeper study of coordination chemistry is recommended for a clearer understanding of these reactions.
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Homework Statement


I need to know the reactants of an iron(III) chloride and potassium thiocyanate reaction.


Homework Equations



FeCl3(aq) + KSCN(aq) =??

The Attempt at a Solution


i think it is thiocyantoiron ion and potassium chloride, but this creates an unbalancable equation (FeCl3(aq) + KSCN(aq) = FeSCN + KCl)
 
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kwrgkmg said:

Homework Statement


I need to know the reactants of an iron(III) chloride and potassium thiocyanate reaction.


Homework Equations



FeCl3(aq) + KSCN(aq) =??

The Attempt at a Solution


i think it is thiocyantoiron ion and potassium chloride, but this creates an unbalancable equation (FeCl3(aq) + KSCN(aq) = FeSCN + KCl)

If you are looking for the "reactants", as you asked, then, you already named them. One of the PRODUCTS is a coordination complex. Look in the sections of your general chemistry textbook about coordination complexes. Three days to one week of study. Thiocyanate ion can form coordination complexes with several metal ions, including Fe ions. The ratio will not be 1 to 1 for the complex with SCN-.
 
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