How to Find the pH of a Weak Acid Solution
- 1). Take a strip of pH paper.
- 2). Put the strip in the weak acid solution, and then take pH paper out after two to three seconds.
- 3). Compare the color of the pH paper with the scale printed on the pH paper package to determine the pH of the acid solution. For weak acid solutions, expect to see pH values of between 3 and 5.
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