Calculating The pH Of Strong Bases

Question 1

When calculating the pH of strong bases

Answer 1

Make sure you assume they dissociate fully

Question 2

Most strong bases dissociate to produce

Answer 2

One OH- ion for every base molecule.

This means the concentrations of the base = the concentration of OH- ions

Question 3

Kw equations

Answer 3

Kw=[H+][OH-]

Question 4

Calculate the pH of some moles of a strong base

Answer 4

Substitute in the figures into the Kw equation

Rearrange the expression to find [H+]

calculate pH -log10