## When titrating a monoprotic strong acid with a weak base at 25°c, the a.ph will be less than 7 at the equivalence point. b.ph wi

Question

When titrating a monoprotic strong acid with a weak base at 25°c, the
a.ph will be less than 7 at the equivalence point.
b.ph will be 7 at the equivalence point.
c.titration will require more moles of the base than acid to reach the equivalence point.
d.titration will require more moles of acid than base to reach the equivalence point.
e.ph will be greater than 7 at the equivalence point?

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1. A. The pH will be less than 7 at the equivalence point. At equivalence point all of the strong acid will have reacted with the weak base and the reverse reaction will occur causing you to form H+ making the solution acidic and making the pH acidic which is lower. Hope that helps

2. When a strong monoprotic acid is Titrated with a weak base at 25u00b0 ;

• The pH will be less than 7 at the equivalence point ( A )

A monoprotic acid donates only a single proton in a titration experiment therefore at the equivalence point in an experiment involving the reaction between the strong monoprotic acid with a weak base, all the base ions will react, while the strong acid will have some unreacted ions ( Hu207a) left in the solution.

The unreactive protons of the strong monoprotic acid present in the solution will make the solution acidic therefore the pH of the solution will be less than 7 at the equivalence point.

Hence we can conclude that when a strong monoprotic acid is titrated with a weak base at 25u00b0, the pH will be less than 7 at the equivalence point.