A buffer is prepared by adding 150mL of KOH 1.00M to 250mL of H2PO4 1.00M. Calculate the moles of HCl that will have to be added to this system to change the pH of the buffer obtained by 0.18 units. (Ka of H2PO4- = 6.3 x 10-8 )

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A buffer is prepared by adding 150mL of KOH 1.00M to 250mL of H2PO4 1.00M. Calculate the moles of HCl that will have to be added to this system to change the pH of the buffer obtained by 0.18 units. (Ka of H2PO4- = 6.3 x 10-8 )

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