Is it possible for universal litmus pH indicator strips to be inaccurate? The objective of this experiment was to determine whether or not litmus strips are consistently accurate and a reliable source for pH testing. pH is an abbreviation for “potential hydrogen” within a substance. The pH represents the alkalinity of a solution. On the pH scale, lower than a seven is an acidic solution while higher than seven is a basic solution with exactly seven being neutral. IF I tested the pH of certain substances with both litmus strips and a pH meter THEN I expected to see minimal to no deviation between the measured results of both methods. I measured the pH level of the following substances: lemon juice, fish tank water, tea, mouthwash, Sea
