Acid reacting with Bases/ Alkalis (Neutralisation Reaction )
Acid + Base → Salt + Water
When Sodium Hydroxide ( NaOH) , a base, reacts with Hydrochloric acid (HCl) , it forms the salt, Sodium Chloride (NaCl) and Water.
NaOH (aq) + HCl(aq) → NaCl (aq) + H 2 O (l)
When Sodium Hydroxide (NaOH) reacts with Sulphuric Acid (H
), Sodium sulphate (Na
) and Water (H
0) are formed.
2NaOH (aq) + H 2 SO 4 (aq) → Na 2 SO 4 (aq) + 2H 2 O (l)
- In all these neutralisation reactions , the byproduct water is formed due to the combination of hydrogen ions present in the acid and hydroxide ions present in the base. The formation of water in an acid-base reaction occurs as follows:
H + (aq) + OH - (aq) → H 2 O (l)