When 0 1 mole of ammonia is dissolved in sufficient water to make 1 litre of solution The solution is - Chemistry - Equilibrium

Question

When 0 1 mole of ammonia is dissolved in sufficient water to
make 1 litre of solution The solution is found to have a hydroxide
ion concentration of 1 34×10-3 The dissociaton
constant of ammonia is??

Kumar Sarang · Accepted Answer

Reaction involved-
NH3 + H2O → NH4+ +
OH-

Given-
NH4+ = OH- = 1
34×10-3 M
NH3 reacted = (0 1 -1 34 ×10-3) M
Condition at equilibrium-
= (0 1 -1 34 ×10-3) M
= 0 1 - 0 00134 M
= 0 09866 M

Kb
= [NH4+ ][OH- ]/[NH3
]
= (1 34×10-3 )× 1
34×10-3)/0 09866
=1 8 × 10-5

When 0.1 mole of ammonia is dissolved in sufficient water to make 1 litre of solution.The solution is found to have a hydroxide ion concentration of 1.34×10-3.The dissociaton constant of ammonia is??

When 0.1 mole of ammonia is dissolved in sufficient water to make 1 litre of solution.The solution is found to have a hydroxide ion concentration of 1.34×10^-3.The dissociaton constant of ammonia is??