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What happens in the volumetric analysis of HCl vs NaOH ,after adding the phenolphthalein indicator ? Why it turns to colorless in the end point ?

What happens in the volumetric analysis of HCl vs NaOH ,after adding the phenolphthalein indicator ? Why it turns to colorless in the end point ?

Grade:11

1 Answers

Aman Bansal
592 Points
10 years ago

Dear student,

 it turns colorless in acidic solutions and pink in basic solutions, as HCl is added it neutralise NaOH and at the end point all the NaOH is consumed .

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