A maximum of 0.50 g of CuX(100 g/mol)will dissolve in 100 mL of a 1.0M ammonia buffer (total concentration) with a pH of 10.00, due to the formation of the tetraamminecopper(II) ion. a.Calculate the Ksp of CuX.

24. How many moles of NH,Br must be added to 2 L of 0.1 M NH,OH to form a buffer whose pH is 9.00? (K, of NH,OH = 1.76 x 0*)

A maximum of 0.50 g of CuX(100 g/mol) will dissolve in 100 mL of a 1.0M ammonia buffer (total concentration) with a pH of 10.00, due to the formation of the tetraamminecopper(II) ion. Calculate the Ksp of CuX.

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How many grams of solid ammonium chloride should be added to 0.500 L of a 0.140 M ammonia solution to prepare a buffer with a pH of 10.050? Mass =

a. Determine the pH change when 0.100 mol KOH is added to 1.00 L of a buffer solution that is 0.452 M in HClO and 0.357 M in ClO-.pH after addition − pH before addition = pH change= ? b. A buffer solution contains 0.387 M CH3NH3Br and 0.409 M CH3NH2 (methylamine). Determine the pH change when 0.084 mol HI is added to 1.00 L of the buffer.pH after addition − pH before addition = pH change = ? c.  Determine the pH change when 0.057 mol HI is added to 1.00 L of a buffer solution that is 0.414 M in HF and 0.229 M in F-.pH after addition − pH before addition = pH change =?

5. Calculate the pH of a buffer solution that is 0.74 M in NH3 and 0.74 M in NH4Cl. For NH3, pKb = 4.75