Question

why does the best antacid require the most drops of acid to change the color of the solution? a the best antacid can neutralize the most acid, so it resists changes in the ph the longest b. the best antacid dissolves very slowly, so it takes longer to change the ph. c. the best antacid is the most basic, so it takes more acid to neutralize it why did the different antacids have different effectiveness buffering the hcl? select all that apply. a buffers are specific to the acids they buffer b. the antacids buffer at different ph c. a single dose was used and they use different quantities of the active ingredient d they use different buffering chemicals

Explanation:

For the first question, the best antacid can neutralize more acid, thus resisting pH - changes longer and requiring more acid drops to change the solution's color. For the second question, different antacids have different effectiveness in buffering HCl because they buffer at different pH, use different quantities of active ingredients, and use different buffering chemicals. Buffers are not specific to HCl in general, so option A is incorrect.

Answer:

First question: A. The best antacid can neutralize the most acid, so it resists changes in the pH the longest
Second question: B. The antacids buffer at different pH
C. A single dose was used and they use different quantities of the active ingredient
D. They use different buffering chemicals