Pupils performing a titration

Pupils performing a titration

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Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: MODEL RELEASED. Pupils performing a titration. Schoolgirl dripping measured volumes of an acid from a burette (down right), while a schoolboy takes notes. The conical flask (lower right) contains a measured volume of an alkali and the indicator methyl orange (from bottle at lower left). As the acid & alkali mix they change the pH of the solution, resulting in a change in the indicator's colour.

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Keywords: acid, apparatus, base, boy, burette, chemical, chemicals, chemistry lesson, child, children, clamp stand, conical flask, equipment, experiment, female, girl, indicator, lab, laboratory, male, methyl orange, neutralisation, neutralise, neutralising, neutralization, neutralize, neutralizing, ph, pupil, pupils, reagent bottle, safety glasses, school, schoolboy, schoolchild, schoolgirl, science education, titration

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