show the dissocation of sodium hydroxide on dissolving in water with the hel0 of chemical equation
Answers
Answer:
i) Hydrochloric acid when dissolved in water
HCl+H
2
O→H
3
O
+
+Cl
−
The properties of reaction is large and dissociates completely in water.
ii) Sodium chloride when dissolved in water
NaCl+H
2
O→Na
+
+Cl
−
It will completely dissolves in water and no chemical reaction occurs because water is highly polar.
iii) Potassium hydroxide when dissolved in water
KOH+H
2
O→K
+
+OH
−
When potassium hydroxide dissolves in water a small change occurs, it dissociates into potassium ion and hydroxide ion.
iv) Ammonia when dissolved in water
NH
3
+H
2
O→OH
−
+NH
4
+
Ammonia dissolves into water readily to give ammonium ion and hydroxide ion.
v) Acetic acid when dissolved in water
CH
3
COOH+H
2
O→CH
3
COO
−
+H
3
O
+
When acetic acid dissolves in water it gives hydronium ion and acetate ion. Large dissociation occurs.
vi) Magnesium chloride when dissolved in water
MgCl
2
+H
2
O→Mg
2
++Cl
−
When magnesium chloride dissolves in water it gives magnesium and chloride ions. So the resulting solution is ionized.
vii) Copper sulphate when dissolved in water
CuSO
4
+H
2
O→Cu
2
++SO
4
2
−
When copper sulphate is dissolved in water it gives copper and sulphate ions and small amount of energy is released.