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

The range of most suitable indicator which should be used for titration of X−Na+ (0.1M,10mL) with 0.1M HCl should be:
(Given that Kb(X−)=10−6)

A
23
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
35
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
68
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
810
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 35
In the titration of a monoacidic weak base with a strong acid, the pH at the equivalent point is always calculated by the formula given below:
pH=12[pKwpKblogC]

Substituting values in the above expression, we get
pH=12[146log(0.1)]=4.5

Hence, the range of most suitable indicator is 35.

Option B is correct.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Hydrolysis
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon