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Two 26.0 mL samples, one 0.100 M HCl and the other 0.100 M HF, were titrated with 0.200 M KOH. Answer each of the following questions regarding these two titration Predict whether the pH at the equivalence point for each titration will be acidic, basic, or neutral.

Respuesta :

Answer:

1.Reaction between Hydrochloric acid(HCl) and Potassium hydroxide will be neutral at end point

2.Reaction between Hyfrofluoric acid (HF) and Potassium hydeoxide will be basic at end point.

Explanation:

Below is the guiding priciple

strong acid+strong base→Neutral producr

Strong acid+weak base→acidic product

weak acid + strong base→ basic product

weak acid+weak base→no reaction

Hydrochloric acid(HCl) is a strong acid and Potassium hydroxide is a strong base because both dissociates completely in water,the product will be neutral

HCl+KOH→KCl+H2O

Hydrofluoric acid is a weak acid while Potassium hydroxide is a strong base,the product will be basic

mickymike92

Based on the nature of the two acids,;

  • for HCl, pH at equivalence point is 7.
  • for HF, pH at equivalence point is greater than 7.

What is equivalence point of a titration?

The equivalence point of an acid-base titration is the point at which equal amount of acid and base have reacted.

The pH at equivalence point depends on the nature of the acid and base being titrated.

pH at equivalence point is:

  • equal to 7 when strong acid and base are titrated
  • less than 7 when strong acid and weak base are titrated
  • greater than 7 when weak acid and a strong base are titrated

HCl is a strong acid and KOH is a strong base, therefore, pH at equivalence point is 7.

HF is weak acid and KOH is a strong base, therefore, pH at equivalence point is greater than 7.

Learn more about equivalence point at: https://brainly.com/question/18933025

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