- The table below shows the pH value and the molarity of a strong acid and a weak acid.
Molarity of AcispH valueHydrochloric acidEthanoic Acid
0.1 mol dm-31.02.9 0.01 mol dm-32.03.4 0.001 mol dm-33.03.9 0.0001 mol dm-34.04.4 0.00001 mol dm-35.04.9
- The table below shows the pH value and the molarity of a strong alkali and a weak alkali.
Molarity of alkalipH valueSodium hydroxide solutionAmmonia aqueus
0.1 mol dm-313.011.1 0.01 mol dm-312.010.6 0.001 mol dm-311.010.1 0.0001 mol dm-310.09.6 0.00001 mol dm-39.09.1
- According to the tables shown above, we can conclude that the pH value of acid or alkali is affected by 2 factors:
- The Molarity
- Strong or weak acid(Alkali)