Question

what is rhe function of phenolphathalion used in neautrilazation reaction
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Answer 1

Answer:

Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.

Answer 2

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What is rhe function of phenolphathalion used in neautrilazation reaction.

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• Phenolphthalein is used in chemical analysis as a visual indicator in the determination of the equivalence point in neutralization reactions or acid-base titrations.

• The reagent for these acid-base titrations is prepared at 1% dissolved in 90% alcohol.

• A neutralization reaction is a chemical reaction where an acid and a base are combined with the intent of producing a neutral pH level.

• The byproducts of a neutralization reaction are water and a form of salt, and the reaction is exothermic.

• Neutralization may be used to reduce the risk of corrosion.

• An example of a common neutralization reaction is:

        HBr + KOH → KBr + H20

• A strong acid- strong base titration is performed using a phenolphthalein indicator. Phenolphtalein is chosen because it changes color in a pH range between 8.3 – 10. It will appear pink in basic solutions and clear in acidic solutions.

 

 

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