Compute the pka value of the acid and determine moles

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Reference no: EM13207731

Strong base is dissolved in 745 mL of 0.400 M weak acid (Ka= 3.75 x 10^-5) to make a buffer with a pH of 4.08. Assume that the volume stays constant when the base is added.

a) calculate the pKa value of the acid and determine the number of moles of acid initially present.

b) when the reaction is complete, what is the concentration ratio of conjugate base to acid?

c) How many moles of strong base were initially added?

Reference no: EM13207731

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