1. Identify the Brønsted acid(s) in the following reaction.

 

       (Points : 1)

       HIO₃

 

       HIO₃ and H₃O⁺

 

       H₂O

 

       H₂O and HIO₃

 

 

Question 2.

2. Identify all Brønsted base(s) in the following reaction.

 

       (Points : 1)

       H₂O

 

        

 

       OH^-

 

       More than one response is correct

 

 

Question 3.

3. Which of the following is present in pure water? (Points : 1)

       H₃O⁺

 

       OH^-

 

       H₂O

 

       more than one response is correct

 

 

Question 4.

4. In the following reaction, all substances are soluble, and all dissociate except H2O. Identify the spectator ions.

 

HCl + KOH → KCl + H₂O

(Points : 1)

       H⁺ and OH^-

 

       K⁺ and Cl^-

 

       H^+ and K^+ 

 

       C1^- and OH^-

 

 

Question 5.

5. A solution for which [H+] = 1.0 x 10^-3 will have a pH of (Points : 1)

       5.00

 

       3.00

 

       -5.00

 

       -9.00

 

 

Question 6.

6. The molar concentration of OH in a water solution is 1.0 x 10^-9 The pH of the solution is (Points : 1)

       9.00

 

       5.00

 

       > 9.00

 

       < 5.00

 

 

Question 7.

7. Identify the substance with the lowest pH. (Points : 1)

       orange juice

 

       household ammonia

 

       baking soda, NaHCO₃

 

       milk

 

 

Question 8.

8. Which of the following is a weak acid? (Points : 1)

       HNO₃

 

       HCl

 

       H₂CO3

 

       H₃SO₄

 

 

Question 9.

9. A 25.00 mL sample of H₂SO₄ acid solution requires 17.35 mL of 0.118 N base for titration. What is the normality of the acid solution? (Points : 1)

       0.0819 N

 

       0.164 N

 

       0.0409 N

 

       0.236 N

 

 

Question 10.

10. Which salt shifts the pH when dissolved in water? (Points : 1)

       KCl

 

       Al(NO₃)₃

 

       NaCl

 

       NaNO₃

 

 

Question 11.

11. Which of the following mixtures would represent a buffer? (Points : 1)

       sodium chloride/hydrochloric acid

 

       sodium sulfate/sulfuric acid

 

       sodium formate/formic acid

 

       none of these

 

 

Question 12.

12. The buffer capacity is the amount of ____ that can be absorbed without causing significant changes in pH. (Points : 1)

       acid

 

       base

 

       neither acid or base

 

       either acid or base

 

 

Question 13.

13. When your liver detoxifies ethyl alcohol, the concentration of the hydrogen ion increases. This will result in: (Points : 1)

       respiratory acidosis

 

       metabolic acidosis

 

       respiratory alkalosis

 

       metabolic alkalosis

 

 

Question 14.

14. Which of the following would you expect to be a weak electrolyte? (Points : 1)

       acetic acid

 

       sodium acetate

 

       water

 

       more than one answer is correct

 

 

Question 15.

15. How many meq are contained in 25.00 mL of a 0.225 M solution of CaCl₂? (Points : 1)

       5.62 x 10^-3 meq

 

       2.81 meq

 

       1.12 x 10^-2 meq

 

       1.12 x 10¹Â meq