Science, asked by anand5555, 1 year ago

why the indicator does not get affected by salt

Answers

Answered by Ritiksingh1338
2
Because salt is crystalline solid
Answered by gopeshtiwari26
0


No. Many pH indicators are weak acids or weak bases that change color when the pH is above or below the indicators pKa. For example take a look at p-nitrophenol (pKa ~ 7.2):



If the solution’s pH is below the pKa, p-nitrophenol exists in it’s acidic form (left) which is colorless. If the pH rises above the pKa (> ~7.2), the p-nitrophenol loses a hydrogen from it’s hydroxyl group. When this happens the solution will turn yellow due to the presence of the p-nitrophenolate ion.

Sodium Chloride is considered a neutral salt because it is formed from the reaction of a strong acid with a strong base:


Neutral salts don’t hydrolyze and even if they did, you wouldn’t be able see any observable color changes at varying pH levels.

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