Tusomesasa.

A sample of water is suspected to contain sulphate ions. Describe an experiment that can be carried out to determine the presence of sulphate ions.(4marks)

Suggested resposponses

Add a few drops of Barium nitrate solution to the water sample; followed by some drops of nitric (v) acid; white precipitate is formed; which does not dissolve in addition of nitric (v) acid indicating the presence of sulphate ions in the water sample;