- We have an 8.67 M solution of ammonium bromide in water ---- so NH4Br + H2O
- I need to work through and quantify the dissociation reaction to ammonia NH3
I can see that we have NH4Br + H2O = NH4OH + HBr
Then....is the next dissociation NH4 + OH-
Or do we get NH4OH = NH3 + H2O
Bottom line is that I need to be able to predict the precise molar concentration of NH3 in this solution.© BrainMass Inc. brainmass.com October 10, 2019, 7:00 am ad1c9bdddf
Ok, so the first step is the dissociation of NH4Br
NH4+Br- + H2O -----> NH4+ (aq) + Br- (aq)
8.67M 8.67M 8.67M
Now NH4+ will dissociate in water
NH4+ + H2O <-------> ...
The equilibrium concentration of NH3 is calculated knowing the initial concentration of NH4Br.