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Why do you titrate a weak acid with a strong base?

Why do you titrate a weak acid with a strong base?

In a weak base-strong acid titration, the acid and base will react to form an acidic solution. A conjugate acid will be produced during the titration, which then reacts with water to form hydronium ions. This results in a solution with a pH lower than 7.

Why titration of weak acids with weak bases are not done?

If both are of equal strength, then the equivalence pH will be neutral. However, weak acids are not often titrated against weak bases because the colour change shown with the indicator is often quick, and therefore very difficult for the observer to see the change of colour.

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When titrating a weak acid with a strong base What is the equivalence point?

POINT OF EMPHASIS : The equivalence point for a weak acid-strong base titration has a pH > 7.00. For a strong acid-weak base or weak acid-strong base titration, the pH will change rapidly at the very beginning and then have a gradual slope until near the equivalence point.

Can we titrate weak acid with a weak base?

weak acid and weak base always act as buffer before the equivalence point, at equivalence point and after the equivalence point. As a result we don’t get steep section in titration curve or in other words no shap change in pH of solution near the equivalence point and hence we can’t select a suitable indicator.

When a strong acid is titrated with a strong base?

In a strong acid-strong base titration, the acid and base will react to form a neutral solution. At the equivalence point of the reaction, hydronium (H+) and hydroxide (OH-) ions will react to form water, leading to a pH of 7. This is true of all strong acid-strong base titrations.

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Why are strong acids used in titration?

The purpose of a strong acid-strong base titration is to determine the concentration of the acidic solution by titrating it with a basic solution of known concentration, or vice-versa, until neutralization occurs.

Why do weak acids have higher equivalence points?

The correct answer is C. In the titration of a weak acid with a strong base, the conjugate base of the weak acid will make the pH at the equivalence point greater than 7.

When titrating a strong acid with a strong base approximately where would the pH be observed when reaching the equivalence point?

At the equivalence point, equal amounts of H+ and OH- ions will combine to form H2O, resulting in a pH of 7.0 (neutral). The pH at the equivalence point for this titration will always be 7.0, note that this is true only for titrations of strong acid with strong base.

Can you titrate a strong acid with a weak base?

volume of titrant can be made (titration curve). In the case of titrating the acid into the base for a strong acid-weak base titration, the pH of the base will ordinarily start high and drop rapidly with the additions of acid.

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When a strong acid is titrated with a strong base The end point is the point of which conductance?

The end point of the conducotmetric titration is the point at which the 2 straight lines on the graph above intersect (which coincides with the minimum conductance on our graph). Reading off the graph will give the volume of base required to neutralise all the acid, the equivalence point of the neutralisation reaction.

When a weak base is titrated with a strong acid the pH at the equivalence point?

In the case of a weak base versus a strong acid, the pH is not neutral at the equivalence point. The solution is in fact acidic (pH ~ 5.5) at the equivalence point.