Question

How many moles of NaOH must be added to 200 mL of 0.1 M solution of `HNO_(3)` to get a solution having pH value 2.00 ?

Answer 1

(i) pH of initial solution
(ii) calculation of normality of the solution after neutralisation
(iii) calculation of number of equivalent of `HNO_(3)` neutralised
(iv) calculation of number of moles of NaOH required to neutralise this `HNO_(3)` in 200 ml
(v) 0.018