Question #ad049

1 Answer
Dec 28, 2016

Answer:

Ammonia gas behaves as an alkali in water........................

Explanation:

Ammonia gas is exceptionally soluble in water, and an experiment called the #"ammonia fountain"# (which you'll have to seek out on the interwebz) spectacularly demonstrates this. In aqueous solution, ammonia behaves as a weak base, and the given equilibrium lies somewhat to the right:

#NH_3(aq) + H_2O(aq) rightleftharpoons NH_4^+ + HO^-# #;K_"eq"=10^(-4.75)#

If you are in first year university, can you tell me the #pH# of a #1*mol*L^-1# solution of #NH_3(aq)#?

#K_"eq"=10^(-4.75)=([NH_4^+][HO^-])/([NH_3(aq)])#