Solving Hard Chemistry Equations

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SUMMARY

This discussion focuses on the accuracy of complex chemical equations involving iron (Fe) and various ligands in aqueous solutions. The equations presented include the formation of hexaaquairon(III) complexes and their subsequent reactions with hydrochloric acid (HCl), potassium thiocyanate (KSCN), and potassium fluoride (KF). Participants confirm that while some equations are close to being balanced, others contain significant errors that need correction. Specifically, the reaction involving KSCN is identified as incorrect, and the need for balanced equations is emphasized.

PREREQUISITES
  • Understanding of coordination chemistry, particularly hexaaquairon(III) complexes.
  • Knowledge of acid-base reactions and ligand substitution reactions.
  • Familiarity with chemical equation balancing techniques.
  • Basic grasp of aqueous solution chemistry and solubility rules.
NEXT STEPS
  • Study the principles of coordination chemistry and the behavior of transition metal complexes.
  • Learn about the balancing of redox reactions in aqueous solutions.
  • Research the specific interactions of ligands with metal ions, focusing on thiocyanate and fluoride ligands.
  • Explore the effects of pH and concentration on the stability of metal-ligand complexes.
USEFUL FOR

Chemistry students, educators, and professionals involved in inorganic chemistry, particularly those working with transition metals and coordination compounds.

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CHEM EQUAtioNS HARD!

hi can anybody show me if i am writing these equations right or not thanks

Fe3+ + 6H20 -> F2(H20)6 3 +


Fe(H20)6 3+ + h20 -> Fe(h20)5(OH) 2+ + H30+

when added HCL

Fe(H20)5(OH) 2+ + 4Cl- -> Fe(OH)cl4 2- + 5H20

when added KSCN

Fe(OH)cl4 2- + SCN- -> Fe(Oh)SCN- + KCl4 2-

when added KF

Fe(OH)SCN- + KF -> KSCN + Fe(Oh)F-
 
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dagg3r said:
hi can anybody show me if i am writing these equations right or not thanks
We can only check if they are balanced and possible. Whether they will really happen will depend on the conditions - so without the actual question, it would be hard to tell truth from fiction.

Please post the original question.

Fe3+ + 6H20 -> F2(H20)6 3 +


Fe(H20)6 3+ + h20 -> Fe(h20)5(OH) 2+ + H30+
Close, but not really balanced.

when added HCL

Fe(H20)5(OH) 2+ + 4Cl- -> Fe(OH)cl4 2- + 5H20

when added KSCN

Fe(OH)cl4 2- + SCN- -> Fe(Oh)SCN- + KCl4 2-
This is really wrong. Recheck it.

when added KF

Fe(OH)SCN- + KF -> KSCN + Fe(Oh)F-
Mistake carried over from previous step.
 

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