Question

To a 50 ml of 0.1 M HCl solution, 10 ml of 0.1 M NaOH is added and the resulting solution is diluted to 100 ml. What is change in pH of the HCl solution? 

(a) 4.398 

(b) 0.398 

(c) 0.1M 

(d) None. 

Answer 1

Correct option  (b) 0.398 

Explanation:

Before adding HCl solution