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QUESTION 3 (15 MARKSI (a) Identify the Brønsted-Lowry acids, Brønsted-Lowry bases, conjugate acid and conjugate base in
Posted: Wed May 18, 2022 1:29 pm
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- Question 3 15 Marksi A Identify The Bronsted Lowry Acids Bronsted Lowry Bases Conjugate Acid And Conjugate Base In 1 (93.29 KiB) Viewed 32 times
QUESTION 3 (15 MARKSI (a) Identify the Brønsted-Lowry acids, Brønsted-Lowry bases, conjugate acid and conjugate base in the reaction below: [12 x 4 = 2 Marks] CO32- + H2O + HCO3 + OH (b) State the following statement is TRUE OR FALSE for a 0.10 M solution of a strong acid HA? [3 Marks) (i) The pH is 1.00 (ii) [H+] >[A-] () (iii) [H+] = [A-] Ans: (i) True (ii) False (iii) True (c) [3 Marks) What is the pH of a 0.02M Ca(OH)2 ? [Given the Kw = 1.0 x 10-14) Ans:12.6 (d) A 0.040 M solution of a monoprotic acid is 14 percent ionized. Calculate the ionization constant of the acid, Ka. [3 Marks) Ans: 9.2 x 10-4