Problem: Part AWhat mass of ammonium chloride should be added to 2.50 L of a 0.150 M NH3 in order to obtain a buffer with a pH of 9.50? Express your answer using two significant figures.

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Part A

What mass of ammonium chloride should be added to 2.50 L of a 0.150 M NH3 in order to obtain a buffer with a pH of 9.50? 

Express your answer using two significant figures.

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