Questions: Page 8 of 22 Question 8 1 Point Discuss how buffers help prevent drastic swings in pH . (A) Buffers absorb excess hydrogen and hydroxide ions to prevent increases or decrease in pH . An example is the bicarbonate system in human body. (B) Buffers absorb excess hydrogen ions to prevent increases or decreases in pH . An example is the bicarbonate system in the human body. (C) Buffers absorb excess hydroxide ions to prevent increases or decreases in pH . An example of that is the bicarbonate system in the human body. (D) Buffers absorb excess hydrogen and hydroxide ions to prevent increases or decreases in pH . An example of that is carbonate system in human body. Continue

Solution Steps

The question asks about the role of buffers in preventing drastic swings in pH. Buffers are substances that help maintain a stable pH by neutralizing added acids or bases.

• Option (A): States that buffers absorb excess hydrogen and hydroxide ions to prevent pH changes and gives the bicarbonate system as an example.
• Option (B): States that buffers absorb excess hydrogen ions to prevent pH changes and gives the bicarbonate system as an example.
• Option (C): States that buffers absorb excess hydroxide ions to prevent pH changes and gives the bicarbonate system as an example.
• Option (D): States that buffers absorb excess hydrogen and hydroxide ions to prevent pH changes and gives the carbonate system as an example.

• Option (A): Correctly mentions that buffers absorb both hydrogen (H\(^+\)) and hydroxide (OH\(^-\)) ions and provides the correct example of the bicarbonate system.
• Option (B): Incorrect because it only mentions hydrogen ions.
• Option (C): Incorrect because it only mentions hydroxide ions.
• Option (D): Incorrect because it mentions the "carbonate system" instead of the "bicarbonate system."

Final Answer