Guest

Sir kindly give me the solution for question number 68

Sir kindly give me the solution for question number 68

Question Image
Grade:11

1 Answers

Arun
25750 Points
5 years ago
 
Dear student
 
indicator is a weak acid
 
Ka =[H+] [Ln-]/[H Ln]
 
sinceqcetic acid and sodium acetate acts a s a buffer.
 
pH = pKa  + log  salt / acid
 
5.45 = 4.75 + log salt /acid
 
salt /acid = 10^0.7=  Almost 5

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free