State how many moles of the conjugate base

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Reference no: EM13180142

Assume that .20 mol of the acid is added to 250 mL of water. To make a buffer of pH = 4, how many moles of the conjugate base must be added to the solution?

The acid is benzoic acid KA= 6.3 x 10^-5

Reference no: EM13180142

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