Phenol red

Addition of dilute sodium hydroxide to an acidified solution of the indicator.

Пікірлер: 2

  • @uhoh5473
    @uhoh54732 ай бұрын

    0:50 on the right bottom compound under alkaline conditions does the oxygen have 7 electrons then 6 valence electrons? That’s why it has a -? 👍❤️

  • @Gardenindicators

    @Gardenindicators

    2 ай бұрын

    The sulfonate ion will have 3 pairs of electrons on oxygen, overall this is negatively charged. There are some useful illustrations here www.chem.ucla.edu/~harding/IGOC/S/sulfonate.html