Question: help please! A buffer is created by mixing equal concentrations of NH4+and NH3. Calculate the volume of the NH3 solution (in mL ) needed to

help please!

A buffer is created by mixing equal concentrations of NH4+and NH3. Calculate the volume of the NH3 solution (in mL ) needed to create a buffer of pH=8.51 with a total volume of 118mL. Kb(NH3)=1.80105

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