AP BIOLOGY

BIOCHEMISTRY

PH

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Buffers help keep pH constant by adding or absorbing
A
H+
B
Na+
C
Cl-
D
electrons
Explanation: 

Detailed explanation-1: -Buffers are solutions that contain a weak acid and its a conjugate base; as such, they can absorb excess H+ ions or OH–ions, thereby maintaining an overall steady pH in the solution.

Detailed explanation-2: -A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable.

Detailed explanation-3: -They work by neutralizing any additional acid (H+ ions) or base (OH– ions) to maintain the desired pH. A pH buffer acts as either a weak acid or a weak base to ensure that the media will be somewhat resistant to change in pH.

Detailed explanation-4: -If a strong acid is added to a buffer, the weak base will react with the H+ from the strong acid to form the weak acid HA: H+ + A-

There is 1 question to complete.