Question

A pH = 7.6 buffer is needed in the lab. This buffer is made by first dissolving 17.42 g K2HPO4 in 600 mL of water. What is the pH of this salt solution? This solution of course will be too basic becuase we only have the base of the buffer present.

What must the value of the ratio of [H2PO4-]/[HPO42-] be to create a buffer solution that is pH = 7.6?

How many moles of HCl must be added to the 600 mL solution of HPO42-(aq) to prepare the pH = 7.6 buffer solution?

How many mL of 0.5 M HCl must be added to the solution to create the pH = 7.6 buffer solution?

Answer 1

And you know how to do how much of this? Start by explaining what you don't understand

Answer 2

ph=4 fpr number 10