A buffer of pH 9 from a solution that is 0.250 M  NH3 and some 0.115 M HCl - a)   What ratio of NH3/NH+4 is required for this pH? b)  What volume of HCl is required to produce 1.00 L of the buffer with this pH?

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.