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What would happen if small amounts of 1M Ba(OH)2 were added to a solution of 1M...

What would happen if small amounts of 1M Ba(OH)2 were added to a solution of 1M NH3?

a. The base ionization constant for NH3 will go down

b. The base ionization constant for NH3 will go up

c. The percent ionization of NH3 will go down

d. The percent ionization of NH3 will go up

e. The percent ionization for NH3 will remain unchanged

Solutions

Expert Solution

NH3 is weak base.
The equilibrium reaction is:
NH3 + H2O <-> NH4+ + OH-

Adding small amount of string base is like adding OH- which is product in above equilibriujm/

So, the above equilibrium will shift to reactant side.

That is percent ionisation of NH3 will decrease.

Ionisation constant do not change as this is constant and deepen only on temperature.

Answer: c

queen_honey_blossom answered 2 years ago
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