Consider the titration of a weak acid with a strong base. Which statement below is true...

Question

Question

Consider the titration of a weak acid with a strong base. Which statement below is true regarding the equivalence point in th

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

d) it occurs a pH greater than 7 because a basic salt is formed.

An acid is a molecule which can donate protons (H+) and a base who accepts the protons (H+) or in other words, gives OH- ions in an aqueous solution.

The titration of a weak acid and a strong base :

In this titration, protons (H+) from the weak acid transfer directly to the hydroxide ions of strong base.

Let's take an example of weak acid and strong base :

Weak acid: acetic acid (C2H4O2)

Strong base: NaOH ( sodium hydroxide).

C2H4O2(aq)+OH-(aq)= C2H3O2-(aq)+H2O

OH- ions from the NaOH solution.

At equivalence point of titration, pH will be greater than 7 because all the acid(C2H4O2) is converted to it's conjugate base (C2H3O2-) by the addition of OH- ions from NaOH solution and so the solution formed is a basic solution.

Add a comment

Answer 2

Similar Homework Help Questions

Consider the titration of a weak acid with a strong base. Which statement below is true...

Consider the titration of a weak acid with a strong base. Which statement below is true regarding the equivalence point in this titration? It occurs at a pH less than 7.0 because a basic salt is formed. O It occurs at a pH greater than 7.0 because an acidic salt is formed. O It occurs at a pH = 7.0 because the acid has been neutralized. O It occurs at a pH less than 7.0 because an acidic salt is...
Which of the following is true for the titration of a weak acid with a strong base? O a. The pH at the equivalence...

Which of the following is true for the titration of a weak acid with a strong base? O a. The pH at the equivalence point is acidic. b. A buffer solution is formed before the equivalence point. OC. The initial pH equals -log (conc. of the acid). Od. The indicator changes its color at the half-neutralization point.
17. Consider the titration of a weak base (such as NH) with a strong acid (suc...

17. Consider the titration of a weak base (such as NH) with a strong acid (suc The pH of the solution at the equivalence point of the titration will be A) greater than 7.00 B) equal to 7.00 C) less than 7.00 D) none of the above

19. The conjugate base salt to a weak acid (NaA) is titrated with 0.100 M HCl...

19. The conjugate base salt to a weak acid (NaA) is titrated with 0.100 M HCl to its equivalence point. A 25.0 mL solution of a 0.200 M solution of the salt was titrated. The pK, for the unknown conjugate acid is 4.31. (a) Will the equivalence point be acidic or basic for this titration? i.e. pH less than 7.0 or greater than 7.0? (b) What is the volume in mL needed of HCl to reach the equivalence point? (c)...
TRUE or FALSE: For every weak acid-strong base titration, the equivalence point will have a pH...

TRUE or FALSE: For every weak acid-strong base titration, the equivalence point will have a pH that is greater than 7
consider the titration of a weak monoprotic acid (HA) with a strong base. If the titration...

consider the titration of a weak monoprotic acid (HA) with a strong base. If the titration has begun, but the equivalence point has not yet been reached, which of the following is true: A) The solution is a bugger and the HH equation can be used to compute the solution pH B) The excess titrant will dominate and control the pH at this point C) The dissociation of the weak acid to donate protons will determine pH - make a...

A. Match each type of titration to its pH at the equivalence point. Weak acid, strong base Strong acid, strong base...

A. Match each type of titration to its pH at the equivalence point. Weak acid, strong base Strong acid, strong base Weak base, strong acid pH less than 7 pH equal to 7 pH greater than 7 B. A 56.0 mL volume of 0.25 M HBr is titrated with 0.50 M KOH. Calculate the pH after addition of 28.0 mL of KOH. C. Consider the titration of 50.0 mL of 0.20 M NH3 (Kb=1.8 x 10^-5) with 0.20 M HNO3....
To learn about titration types and how to calculate pH at different points of titration. In an acid-base titration, a...

To learn about titration types and how to calculate pH at different points of titration. In an acid-base titration, a titrant (solution of a base or acid) is added slowly to an analyte (solution of an acid or base). The titration is often monitored using a pH meter. A plot of pH as a function of the volume of titrant added is called a pH titration curve. Prior to the titration, the pH is determined by the concentration of the...
Which is true for the following titrations. Question 3 options: 123 The titration of a strong...

Which is true for the following titrations. Question 3 options: 123 The titration of a strong base using a strong acid. 123 The titration of a weak base using a strong acid. 123 The titration of a weak acid using a strong base. 1. The pH at the equivalence point is approximately equal to 7.0. 2. The pH at the equivalence point is less than 7.0 3. The pH at the equivalence point is greater than 7.0. Question 4 (1...

Question 14 What is the pH at the equivalence point in a strong acid-weak base titration?...

Question 14 What is the pH at the equivalence point in a strong acid-weak base titration? -2 7 less than 7 16 greater than 7

Consider the titration of a weak acid with a strong base. Which statement below is true...

Homework Answers

Add Answer to:
Consider the titration of a weak acid with a strong base. Which statement below is true...

Post as a guest

Earn Coins