A buffer is prepared consisting of 0.75 mol of sodium di-hydrogenphosphate, NaH2PO4, and 0.60 mol of sodium hydrogenphosphate, Na2HPO4, dissolved in 600.0 mL of water. The Ka for the di-hydrogenphosphate ion is 6.2 x 10-8 at 25 °C. 10 mL of 1.0 mol L-1 HCl is added to 600.0 mL of the buffer. What is the change in the pH of the buffer?

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10 mL of 10 mol L1 HCl 0010 10 0010 mole HCl we have 075 mo... View the full answer