Post Utme Delsu 2021 Chemistry Question 9

Practice objective / multiple choice question 9 from the 2021 Post Utme Delsu Chemistry examination.

Post Utme Delsu 2021 Chemistry Objective / Multiple Choice

Question 9 POST_UTME_DELSU • 2021 • CHEMISTRY • objective

A 1.00 M solution of a weak acid (HA) is titrated with a 1.00 M solution of a strong base (NaOH). The pH of the solution after the addition of 20.0 mL of NaOH is 4.00. Calculate the dissociation cons\tant (Ka) of the acid.

A. 1.0 x 10^\( -5 \)

Correct Answer B. 1.0 x 10^\( -4 \)

C. 1.0 x 10^\( -3 \)

D. 1.0 x 10^\( -2 \)

Correct Answer

Correct Option:

1.0 x 10^\( -4 \)

This is Post Utme Delsu 2021 Chemistry Question 9. It is one of the objective questions from the 2021 Post Utme Delsu Chemistry examination.

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