Universal indicator. A range of flasks showing the colours of solutions containing universal indicator at a variety of hydrogen ion concentrations (pH values). At left are strong acids (pH<1),with acidity decreasing toward the centre. The middle flask is neutral (pH=7). Moving toward the right,alkalinity increases until its maximum at pH=14 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4370 px × 4370 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |