Is #K^+[Pb(OH)_3]^(-)# possible? Could the cation be exchanged?

Answer 1

Yes, to a first approximation..........

#K^+[Pb(OH)_3]^-# is the SALT of potassium ion, #K^+#, and the complex ion, #[Pb(OH)_3]^-#. I do not know whether this ion has been actually isolated and characterized; #[Pb(OH)_4]^(2-)# is better known. In either case, we could potentially exchange the potassium cation for other cations such as #Na^+# or #Li^+#, but probably not for #NH_4^+#, why not?

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Answer 2

Mateo Aguilar

It is possible for K^+[Pb(OH)_3]^(-) to exist. Ion exchange is the process by which K^+ can be exchanged with other cations in solution.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.