(strong/weak acids)

• what can all acids do in solution?

  ionise
• what does it mean when an acid ionises in a solution?

  splitting up to produce a hydrogen ion, H+ and another ion.
• what is an example of ionising an acid?

  HCL = H+ + Cl-
• what are some examples of strong acids?

  sulfuric, hydrochloric, and nitric acids.
• what are some examples of weak acids?

  ethanoic, citric, and carbonic acids.
• what do strong acids do in water?

  ionise almost completely.
• what do weak acids do in water?

  partially ionise.
• what pH do strong acids tend to have?

  0-2
• what pH do weak acids tend to have?

  2-6
• what type of reaction is the ionisation of a weak acid?

  reversable reaction, which sets up an equilibrium. Since only a few of the acid particles release H+ ions, the equilibrium lies well to the left.
• what does acid strength tell you?

  what proportion of the acid molecules ionise in water
• what is an acid with a large number of acid molecules compared to the volume of water said to be?

  concentrated
• what is an acid with a small number of acid molecules compared to the volume of water is said to be what?

  dilute
• what does the concentration of an acid describe?

  the total number of dissolved acid molecules