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 than any of the others to bring the acid build up to a neutral pH of 7. This is because it would make it more affordable and uses a low amount of powde…