Question

4) A buffer solution contains 0.3 mol dm-3 NH4OH is 1.8 x10-S.Calculate pOH of
the solution​

Answer 1

Answer:

Step-by-step explanation:

Answer:- pH = 10

Solution:- The pH of the buffer is calculated using Handerson equation:

For the given buffer, the acid is ammonium chloride with concentration 0.01 M and the base is ammonium hydroxide with the concentration 0.1 M.

pKa is calculated from the given pKb as:

pKa = 14 - pKb

pKa = 14 - 5 = 9

Let's plug in the values in the equation:

pH = 9 + 1

pH = 10