Red cabbage juice indicator. Red cabbage juice indicator solution was added to several test tubes containing solutions with varying pH values (left to right) from pH 1 through pH 13 in steps of one unit. The colour change is used to identify strong acids (left,pink) and strong alkalis (yellow,right). Hydrochloric acid of varying concentrations was used to prepare acidic solutions (pH under 7),sodium hydroxide of varying concentrations was used to prepare alkaline solutions (pH over 7),and neutral buffer solution was used for pH 7 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 5109 px × 2828 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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