Universal indicator

Universal indicator

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Caption: Universal indicator. Universal indicator was added to three test tubes containing solutions with varying pH values, left to right: acidic (0.01M hydrochloric acid), pH=2; neutral (buffer solution), pH=7; alkaline (0.01M sodium hydroxide), pH=12. Universal indicator changes its colour depending on the pH of the solution.

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Keywords: acid, acidic, acidity, alkali, alkaline, alkalinity, base, basicity, chemical, chemistry, comparing, comparison, educational, experiment, hcl, hydrochloric acid, indicator, liquid, measure, measurement, naoh, ph, ph indicator, science, sodium hydroxide, solution, still life, test, test tubes, testing, universal indicator

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