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10.3 Strong and Weak Bases

10.3 Strong and Weak Bases. LO: I understand the difference between strong and weak bases. 10.3.1 Strong Bases. A base is a substance that an acid. neutralises. A strong base is a substance that is fully ionised to give ions when dissolved in water. hydroxide. e.g. sodium hydroxide:.

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10.3 Strong and Weak Bases

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  1. 10.3 Strong and Weak Bases LO: I understand the difference between strong and weak bases.

  2. 10.3.1 Strong Bases A base is a substance that an acid. neutralises A strong base is a substance that is fully ionised to give ions when dissolved in water. hydroxide e.g. sodium hydroxide: NaOH(s) + water Na+(aq) + OH-(aq) LO: I understand the difference between strong and weak bases.

  3. 10.3.2 Weak Bases A weak base is a substance that is only ionised to give hydroxide ions when dissolved in water. partially e.g. ammonia solution: NH3(aq) + H2O(l) NH4+(aq) + OH-(aq) 99.6% of the ammonia remains as . covalent molecules The equilibrium lies very much to the . left LO: I understand the difference between strong and weak bases.

  4. 10.3.3 Comparing Strong and Weak Bases Reactions of Bases In comparison to a strong base, a weak base: • Has a pH lower lower • Has a conductivity slower • Reacts at a rate. The stoichiometry is for equimolar strong and weak bases. identical LO: I understand the difference between strong and weak bases.

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