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Complex-Ion Equilibria. In general, chemical equilibrium is reached when the forward reaction rate is equal to the reverse reaction rate and can be described using an equilibrium constant, K. Complex ion equilibria are no exception to this and have their own unique equilibrium constant.
- Complex Equilibrium
Complex-Ion Equilibrian II is shared under a CC BY-NC-SA 4.0...
- Hard and Soft Acids and Bases
For example, the complex of Al 3 + (r = 53.5 pm) with four...
- Chelation
For the ammonia complex this gives 1.9 JK-1 mol-1 and for...
- Stereoisomerism in Complex Ions
It isn't qute so easy with the complex ions - either to draw...
- Aspects of Complex-Ion Equilibria
Small, highly charged metal ions have the greatest tendency...
- Complex Equilibrium
Compare and contrast between complex ion and Lewis acid-base equilibria. Describe and explain the concept of complex equilibria and stepwise equilibrium reactions. Use the concept of chemical equilibria in complexometric titrations and calculations. Distinguish among the various types of EDTA titrations and their uses.
We begin our discussion of solubility and complexation equilibriums —those associated with the formation of complex ions—by developing quantitative methods for describing dissolution and precipitation reactions of ionic compounds in aqueous solution.
Complex Ion Equilibria. A Lewis acid is a species that can accept an electron pair, whereas a Lewis base has an electron pair available for donation to a Lewis acid. Complex ions are examples of Lewis acid-base adducts and comprise central metal atoms or ions acting as Lewis acids bonded to molecules or ions called ligands that act as Lewis bases.
About. Transcript. Calculating the solubility of silver chloride in pure water and 3.0 M ammonia. Calculating new equilibrium constant to account for formation of complex ion. Created by Jay. Questions. Tips & Thanks. Want to join the conversation? Log in. Sort by: Top Voted. Erkin Otles. 9 years ago.
The equilibrium constant for the reaction of the components of a complex ion to form the complex ion in solution is called a formation constant (Kf) (sometimes called a stability constant). For example, the complex ion Cu(CN)2 − is shown here: It forms by the reaction: Cu+(aq) + 2CN − (aq) ⇌ Cu(CN)2 − (aq) At equilibrium:
