Using the figure below,which of the following best describes the titration curve?
A) The equivalence point for the titration is pH = 7.
B) The midpoint of the titration is pH = 7.
C) The pKa for this weak acid is 4.76.
D) This is a titration of a weak base by NaOH.

Question

Using the figure below,which of the following best describes the titration curve? 
A) The equivalence point for the titration is pH = 7. 
B) The midpoint of the titration is pH = 7. 
C) The pKa for this weak acid is 4.76. 
D) This is a titration of a weak base by NaOH.

Quizplus · Accepted Answer

The titration curve shows a buffer region (gradual slope in the curve) around pH 4.76, which indicates the pKa of the weak acid being titrated. The equivalence point is not at pH 7, and there is no indication that this is a titration of a weak base with NaOH. Therefore, options A and D can be eliminated. Option B is incorrect because the midpoint of a titration would be at half the volume of the equivalence point, which cannot be determined from the given information.

Using the Figure Below,which of the Following Best Describes the Titration