Neutralise Excess Stomach Acid

Aim: To find which powder, of four, is best for neutralising excess stomach acid. Prediction: With stomach pain relief powders being a consumer product, I predict that the best cure for neutralising a build up of stomach acid will be the one which has the lowest cost to successfully neutralise the dilute hydrochloric acid (HCl) (0.5 mol) (to represent the excess acid found in our stomachs). This powder would have be the one which costs less …

…that my conclusion matches what I said in my prediction. To improve the entire experiment, I would make sure that all the tests were carried out during one lesson, as it would ensure that all the chemicals were always identical. It may have been that the rogue result came from using HCl from a different bottle. However, to wrap things up, I am pleased to say that I believe that the experiment was a success.