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How many pH units change are usually required for an indicator to undergo a color transition?
Wiki User
∙ 11y ago
It depends on the sensitivity of the indicator you are using. There should be a guide with the indicator you are using. Litmus paper, which is the most common form of pH indicator, will change fairly constant across the pH scale, but a neutral (pH 7+/- 0.5 about) solution will normally not cause a change.
Wiki User
∙ 11y ago
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