1.1. This question is about Brønsted-Lowry acids and bases.

i) Give the meaning of the term Brønsted-Lowry base.

ii) Explain the term weak acid.

1.2. When an acid and a base react they produce a conjugate base and a conjugate acid.

acid + base  ⇋  conjugate base + conjugate acid

Write an equation to show how hydrochloric acid behaves as a strong acid when it reacts with water, and state the role of water in this reaction.

1.3. The pH of an acid or base can be calculated using the concentration of hydrogen ions.

i) Calculate the pH of a 0.2 mol dm^-3 solution of HCl at 298K.

ii) Calculate the hydrogen ion concentration of a solution of nitric acid which has a pH of 1.3. 

1.4. Acids can be classed as monoprotic, diprotic and triprotic.

i) Give an example of a diprotic acid and explain the term diprotic.

ii) Calculate the pH of a 0.05 mol dm^-3 strong, diprotic acid.