How can pH paper be used?

NA Nancyawasthi asked on 23 June 2020, 13:22
1 answers / 512 views / 4 votes
MI

pH paper has one or more indicators embedded in it. Simply dip the paper in your solution or drop some solution on it. Then compare the resultant color to the chart that comes with the paper to see an indication of the approximate pH.

An indicator is a compound that is a weak acid/ conjugate weak base where the weak acid has a different color than the weak base. They convert from one to the other when the pH of the solution they are in is either basic or acidic.

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