Question

The ph of solution is 5.0 to this solution sufficient acid is added to decrease the ph to 2.0 increase in hydrogen ion concentration is

Answer 1

pH= -log(H+)

(H+)= -antilog of pH

Firstly (H+)= 10^-5

Then after addition of more acid

(H+)= 10^-2

Increase in (H+)= final H+ conc — initial H+ conc