Problem: NH3 is a weak base (Kb=1.8×10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.077 M in NH4Cl at 25°C?

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NHis a weak base (Kb=1.8×10-5) and so the salt NH4Cl acts as a weak acid. 

What is the pH of a solution that is 0.077 M in NH4Cl at 25°C?

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