Question

Did the rolaids solution function as a good buffer? justify your results.

Answer 1

actually now a days rolaid solutions are not used as buffer.They were acting as antacids. But now they are not used frequently in order to act as a good antacid it has to maintain a proper pH but it cannot maintain that pH required to neutralise the excess acid in stomach
Therefore it is not acting as a good buffer

Answer 2

Rolaids solution is an antacid that can neutralize stomach acid. The chemical composition of the antacid is calcium carbonate (
`CaCO_(3)`) and magnesium hydroxide(
`Mg(OH)_(2)`. So, this rolaid solution being alkaline (basic) in nature can just neutralize the excess acid present. It can act as a buffer by absorbing excess
`H^(+)`ions and maintaining the pH upon the addition of acid. But in a broader sense, Rolaids solution cannot act as a buffer in all conditions as it can only absorb the excess acid but has no effect when excess base is added to a solution.