Question

Find the pH of HCOONH4
[Ka(HCOOH)= 10^-4, Kb(NH4OH) = 10^-5)]

(1) 5
(2) 6.5
(3) 2
(4) 4.5
Please give correct answer with proper explanation.​

Answer 1

Answer:

5

Explanation:

as the formula of H+ in cas of weak base and weak acid is given in the picture above

so. taking log we will be able to find ph