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What is phenalphaline?

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Anonymous

∙ 17y ago
Updated: 5/23/2024

Phenolphthalein is a chemical compound commonly used as an acid-base indicator in titrations. It is colorless in acidic solutions and pink in basic solutions. It has also been used in the past as a laxative but is no longer commonly used for that purpose due to safety concerns.

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∙ 1y ago
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Which indicator is suitable for the titration of washing soda against HCL and why?

Phenolphthalein is a suitable indicator for titration of washing soda (sodium carbonate) against hydrochloric acid. This indicator changes color in the pH range of 8.2 to 10, making it ideal for this titration since the end point occurs when all the sodium carbonate has reacted to form sodium chloride and carbonic acid, resulting in a pH above 8.2.


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Which indicator is suitable for the titration of washing soda against HCL and why?

Phenolphthalein is a suitable indicator for titration of washing soda (sodium carbonate) against hydrochloric acid. This indicator changes color in the pH range of 8.2 to 10, making it ideal for this titration since the end point occurs when all the sodium carbonate has reacted to form sodium chloride and carbonic acid, resulting in a pH above 8.2.


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