The pH scales measures the acidity or alkalinity of a solution. Acids and bases have a wide variety of uses and can react together in neutralisation reactions.
Part ofChemistryRevise: Acids and bases
Adding water to an acid or base will change its pH.
When an acidic solution is diluted with water the pH of the solution increases gradually, making the solution less acidic as more water is added.
Similarly, when an alkali is diluted with water the pH of the alkali will fall towards 7, making the solution less alkaline as more water is added.
