Bonus (up to 10%!) Oh no! The mad scientist Nernst Blofeld has kidnapped you and, given his penchant for buffers, tasked you with creating one before you can be set free. You are to prepare precisely 100.0 mL of a pH = 4.00 buffer solution using 0.100 M benzoic acid and0.160 M sodium benzoate. How many milliliters of benzoic acid and how many milliliters of sodium benzoate do you mix to pre- pare this buffer? Blofeld kindly reminds you that the Ka of benzoic acid is 6.31x10. %3D

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