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15 July, 04:40

What color would a phenolphthalein solution be at ph=11?

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  1. 15 July, 06:56
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    Colurs of Phenolphthalein at different pH's are as follow,

    When pH is less than zero, means when the conditions are strongly acidic then it imparts Orange Color.

    At pH ranging from zero to 8.2 (acidic or weakly acidic conditions) it is colorless.

    At pH ranging from 8.2 to 12 (Basic conditions) it imparts Pink color.

    At pH greater than 13 (strongly basic) it is again Colorless.

    Result:

    So, At pH = 11 phenolphthalein solution gives Pink Color.
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