What is the pH of 0.10M diethylamine, (CH3CH2)2NH, (Kb=8.6x10-4)?
Equilibrium reaction: (CH3CH2)2NH(aq) + H2O(l) ⇌ (CH3CH2)2NH2+(aq) + OH-(aq)
Step 1: Construct an ICE chart for the reaction.
Step 2: Write the Kb expression and calculate for Kb.
Solids and liquids are not included in the expression
Step 3: Calculate the equilibrium concentrations.
We cannot remove (–x) from the equation