Compute the ph of a buffer that is prepared by mixing

Reference no: EM13269125

A buffer is prepared by mixing 500 ml of 0.4 M Na2HPO4 and 500 ml of 0.2 M NaH2PO4 (pK1 = 2.10; pK2 = 6.70; pK3 = 12.30)
a) Calculate the pH of this buffer
b) Calculate the change in pH if 10 ml of 1.0 N HCl are added to this buffer.

Reference no: EM13269125

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