Prove the amphotericity of lead hydroxide (4)
| February 10, 2021 | education
In order to understand an amphoteric substance or not, it is necessary to carry out chemical reactions with both a base and an acid, and if this substance enters into chemical interaction with both, then its amphoteric properties can be considered proven.
With hydrochloric acid:
Pb (OH) 2 + 2 HCl = PbCl2 + 2 H2O
Formed salt, lead chloride and water.
With sodium hydroxide base:
Pb (OH) 2 + 2 NaOH = Na2 [Pb (OH) 4].
A complex salt (complex compound), bivalent sodium hydroplumbate, is formed.
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