Question

If the values of stepwise stability constants for a series of successive reactions are logK1 = 4, logK2 = 3.2, logK3 = 2.7 and logK4 = 2, what is the value of β4?

(a) 11.9

(b) 7.94 x 10^11

(c) 1.47 x 10^5

(d) 27.4

I got this question in unit test.

This interesting question is from Stability of Coordination Compounds in division Coordination Compounds of Chemistry – Class 12

Answer 1

Correct choice is (b) 7.94 x 10^11

To explain: logβ4 = logK1 + logK2 + logK3 + logK4

\(\Rightarrow\)log10β4 = 4 + 3.2 + 2.7 + 2 = 11.9

\(\Rightarrow\)β4 = antilog(11.9)

\(\Rightarrow\)β4 = 7.94 x 10^11