Posted by shanice on Tuesday, November 9, 2010 at 2:02pm.
This is a hydrolysis equation.
NH4^+ + H2O ==> NH3 + H3O^+
Ka = (Kw/Kb) = (NH3)(H3O^+)/(NH4^+)
Set up an ICE chart, substitute, solve for H3O^+ and convert to pH.
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