Total concentration of phosphate containing

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Consider 2.50 L of a buffer solution made from NaOH and 3.50 M H3PO4 at pH 2.22 that has a total concentration of phosphate containing species of 0.177 M.

How many mL of 2.00 M HCl must be added to the buffer solution to change its pH by 1.25 units?

Reference no: EM131740889

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