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A.) Calculate the pH of the 0.39 M NH3/ 0.73 M NH4Cl buffer system. B.) What...

A.) Calculate the pH of the 0.39 M NH3/ 0.73 M NH4Cl buffer system.

B.) What is the pH after the addition of 20.0mL of 0.075 M NaOH to 80.0mL of the buffer solution?

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