IB Chemistry SL

Revision Notes

8.1.4 Neutralization

Neutralization

  • A neutralisation reaction is one in which an acid (pH <7) and a base/alkali (pH >7) react together to form water (pH = 7) and a salt

Equilibria Neutralisation Reaction, downloadable AS & A Level Chemistry revision notes

  • The proton of the acid reacts with the hydroxide of the base to form water

Equilibria Neutralisation Reaction Ions, downloadable AS & A Level Chemistry revision notes

  • The spectator ions which are not involved in the formation of water, form the salt

Equilibria Neutralisation Reaction of HCl and NaOH, downloadable AS & A Level Chemistry revision notes

The diagram shows a neutralisation reaction of HCl and NaOH and the two individual reactions that take place to form the water and salt

  • The name of the salt produced can be predicted from the acid that has reacted

Acid reacted & Salt table

Equilibria Table 1_Neutralisation Reactions, downloadable AS & A Level Chemistry revision notes

Exam Tip

The enthalpy of neutralisation is the enthalpy change that occurs when an acid reacts with a base to form one mole of water. Since the reaction between strong acids and strong bases is the same regardless of the acid or base, it should be no surprise the enthalpy change is the same and is approximately -57 kJ mol-1

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