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Questions
What is meant by stability of a coordination compound in solution?
What is a stability constant?
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Solution
The stability constant (also called the formation constant, denoted as Kstab) is the equilibrium constant that measures the extent to which a coordination complex is formed from a central metal ion and its ligands in solution.
Ma+ + nLx− ⇌ [MLn]b+
Stability constant, beta = `[ML_n]^(b+)/([M^(a+)][L^(x-)]^n)`
For this reaction, the greater the value of the stability constant, the greater is the proportion of MLn in the solution.
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