wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

pKa of CH3COOH is 4.74. Thus, the buffer range for CH3COOH and CH3COONa buffer is

A
3.74 to 4.74
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
4.74 to 5.74
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
3.74 to 5.74
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
1.0 to -1.0
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 3.74 to 5.74
Buffer solution is most effective, when
[A]=10[HA]
or [HA]=10[A]
Thus, pH=pKa±log 10=pKa±1=4.74±1
Hence, pH range will be ±1 of pKa value.
So, the buffer range for CH3COOH and CH3COONa is 3.74 to 5.74

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon