Question: You wish to prepare a buffer solution with pH = 9.45. (a) How many grams of (NH 4 ) 2 SO 4 would you add

You wish to prepare a buffer solution with pH = 9.45.

(a) How many grams of (NH₄)₂SO₄ would you add to 425 mL of 0.258 M NH₃ to do this? Assume that the solution’s volume remains constant.

(b) Which buffer component, and how much (in grams), would you add to 0.100 L of the buffer in part (a) to change its pH to 9.30? Assume that the solution’s volume remains constant.

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