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Ilia_Sergeevich [38]
3 years ago
5

An unknown solid acid has a formula h2x. How could you determine the molar mass of the unknown acid for a titration with 0.455 m

koh using phenolphthalein indicator?
Chemistry
1 answer:
Goshia [24]3 years ago
3 0

Answer:

The answer is in the explanation.

Explanation:

A titration of H₂X with KOH produce:

H₂X + 2KOH → 2H₂O + K₂X

It is possible to obtain the moles of H₂X because the moles of KOH are the spent volume of the titration in liters × 0,455M. As for a complete titration of H₂X moles you need twice moles of KOH you know the moles of KOH obtained are half H₂X moles.

As you know the mass of the solid acid that you titrate and molar mass of acid is:

mass of acid / moles of acid. You can determine the molar mass of the unknown acid.

I hope it helps!

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