Grape juice indicator. Purple grape juice changes its colour depending on the pH of the solution. Here grape juice was added to two household solutions: vinegar (mostly diluted acetic acid, CH3COOH) and baking soda solution (sodium bicarbonate, NaHCO3). Vinegar is acidic and turns grape juice pink/red. Baking soda is alkaline and turns grape juice dark green. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 5089 px × 3414 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |