What is the order of reaction for Phenolphthalein?

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The discussion centers on determining the order of reaction for phenolphthalein, with an initial assumption of first order. The specific reaction context is unclear, raising questions about whether it involves combustion, acid/base equilibria, or organic modifications. The user notes the need for more information, particularly regarding the reaction with hydroxide ions (OH-). To accurately ascertain the order of reaction, key parameters such as reaction rate, time, and concentration are necessary. Overall, the conversation highlights the complexity of identifying reaction order without sufficient data.
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Thanks! I think it is first order but need some verification.
 
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What reaction? Combustion? One of the four acid/base equilibria? Or some fancy organic modification?

Not that I will be able to answer, but at the moment even someone with PhDenoloftalein degree won't help.
 
I should have specified, but the phenolphthalein was mixed with OH-, that still might not be enough information needed.
 
I think you need to have 2 of the following to be able to find order of reaction.

Reaction Rate, Time and Concentration.
 
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