Question 1
If you know
Kb for ammonia, NH
3, you can calculate the equilibrium constant,
Ka, for the following reaction:
NH4+ + H2O ⇌ NH3 + H3O+
using the equation:
◦
Ka = 1 /
Kb◦
Ka =
Kb /
Kw◦
Ka =
Kw /
Kb◦
Ka =
Kw ×
KbQuestion 2
If an equal number of moles of the weak acid HCN and the strong base KOH are added to water, is the resulting solution acidic, basic, or neutral?
◦ basic
◦ neutral
◦ acidic
◦ There is insufficient information provided to answer this question.