Question

3. [10 pts) Fill in the blank. a. Acids produce the ion in solution b. Bases produce the ion in solution. c. In acidic solutions, the concentration of is greater than the concentration of d. As pH decreases by one unit, the concentration of acid changes by a factor of 4. [8 pts) Identify whether the following statements are true or false regarding acid rain from air pollution Acid rain is due primarily to increasing concentrations of carbonic acid (H.CO,) in the atmosphere While pH <7 is acidic, acid rain is defined as precipitation with pH < 5.0. Acid rain can occur from secondary pollutants that originated from automobile exhaust. Physiological balance of acids and bases is a fundamental biological process so organisms tend to have equal susceptibility to acidification of water bodies.

Answer 1

Q3. (a.) Acids produce the H⁺(or H₃O⁺) ion in solution.

(b.) Bases produce the OH^-ion in solution.

(c.) In acidic solutions, the concentration of H⁺ (or H₃O⁺) is greater than the concentration of OH^-.

(d.) As pH decreases by one unit, the concentration of acid changes by a factor of 10.

Q4. (a.) Acid rain is due primarily to increasing concentrations of carbonic acid (H:CO3) in the atmosphere : False

(b.) While pH < 7 is acidic, acid rain is defined as precipitation with pH < 5.0. : True

(c.) Acid rain can occur from secondary pollutants that originated from automobile exhaust. : False

(d.) Physiological balance of acids and bases is a fundamental biological process so organisms tend to have equal susceptibility to acidification of water bodies. : True