Pupil performing titration

Pupil performing titration

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Credit: ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: MODEL RELEASED. Pupil performing titration. Schoolgirl dripping measured volumes of an acid from a burette (down centre). The conical flask (lower centre) contains a measured volume of an alkali and an indicator, giving it a pink colour. As the acid and alkali mix they change the pH of the solution. When the acid and alkali neutralize, the indicator changes colour.

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Keywords: acid, apparatus, base, burette, chemical, chemistry, chemistry lesson, child, clamp stand, conical flask, equipment, experiment, girl, indicator, lab, lab coat, laboratory, neutralisation, neutralise, neutralising, neutralization, neutralize, neutralizing, ph, phenolphthalein, pupil, safety glasses, school, science education, titration, water bottle

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