OCR A2 Chemistry Acids

Annotations:

• A proton donor or An H+ ion donor 

1. Definition

   Annotations:

   • A pair of two species that transform into each other by gain or loss of a proton
2. Acid base equilibria involve two acid base pairs

Annotations:

• An acid which only partially dissociates in solution

1. Examples
   1. Ethanoic Acid (CH3COOH)
   2. Methanoic Acid (COOH)
   3. Propanoic Acid (CH3CH2COOH)

1. Acid + Carbonate
   1. CASHOCO
   2. Forms a salt, H2O and CO2
2. Acid + Base
   1. BASHO
   2. Forms a salt and H2O
3. Acid + Metal
   1. MASH
   2. Forms a salt and H2 gas
   3. Redox reaction

Annotations:

• A proton acceptor or An H+ ion acceptor

Annotations:

• An acid which can fully dissociate in solution

1. Examples
   1. Hydrochloric Acid (HCl)
   2. Nitric Acid (HNO3)
   3. Sulphuric Acid (H2SO4)
   4. Chloric Acid (HClO4)
   5. Hydrobromic Acid (HBr)