Write chemical reaction to show the amphoteric nature of water
Answers
Answer:
the amphoteric nature of water can be described on the basis of the following reactions:
1) Reaction with H2S
The reaction takes place as:
In the forward reaction, H2O(l)accepts a proton from H2S(aq). Hence, it acts as a Lewis base.
2) Reaction with NH3
The reaction takes place as:
In the forward reaction, H2O(l)denotes its proton NH3(aq). Hence, it acts as a Lewis acid.
3) Self-ionization of water
In the reaction, two water molecules react as:
Explanation:
Amphoteric nature of water is represented by following chemical reactions.
(1) Water as a base:
H
2
O(l)+H
2
S(g)⇌H
3
O
+
(aq)+HS
−
(aq)
(2) Water as an acid:
H
2
O(l)+NH
3
(aq)⇌OH
−
+NH
4
+
(3) Self ionization of water in which water simultaneous acts as acid and base.
2H
2
O→H
3
O
+
+OH
−