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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 3352 px × 5106 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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