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What compound changes color when used to determine the pH of a substance?

April 26, 2017changes color compound determine pH substance Used

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What compound changes color when used to determine the pH of a substance?

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There are a variety of indicators used to determine change in pH. Different indicators change during certain ranges of pH. For example, phenolphthalein turns from clear to pink in a basic solution (approximately 7.8 to 9). There are universal indicators that cover the whole pH scale.