LIVE Course for free

Rated by 1 million+ students
Get app now
+1 vote
in Chemistry by (29.8k points)

The ionization constant of nitrous acid is 4.5 × 10–4 . Calculate the pH of 0.04 M sodium nitrite solution and also its degree of hydrolysis. 

1 Answer

+1 vote
by (128k points)
selected by
Best answer

NaNO2 is the salt of a strong base (NaOH) and a weak acid (HNO2). 

Now, If x moles of the salt undergo hydrolysis, then the concentration of various species present in the solution will be: 

Therefore, degree of hydrolysis 

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.