If I had 5 solutions that are not labeled (the solutions are ethanoic acid, calcium hydroxide, potassium bromide, sodium chloride and nitric acid) is there a way of identifying which one is which without using an indicator?
An indicator is only one way to identify a solution, based on its pH. All these solutions have other properties that can be used to distinguish them. Moreover, an indicator will not fully distinguish the five solutions, but only separate them into acids and bases, if you had a simple indicator, or into broader groups with an indicator like pH paper.
What properties might you consider?
What other ...
The solution outlines how to identify solutions by their properties as opposed to indicators in approximately 250 words.