Question

One litre of a buffer solution containing 0.01 M nh4cl and 0.1 M nh4oh having pub of 5 has ph of

Answer 1

One litre of a buffer solution containing 0.01 M NH4Cl, ammonium chloride and 0.1 M nNH4OH, ammonium hydroxide having pkb of 5. Then the pH is 10.

Here you will use the equation given below.

pOH= pkb + log[salt]/[base]

pOH= 5 + log 0.01/0.1

pOH = 5-1

pOH = 4

but pH=14- pOH

pH = 14 - 4

pH= 10