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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Andrew Lambert Photography |
Bildgröße: | 3245 px × 4353 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |