- Part A What mass of ammonium chloride should be added to 2.45 L of a...

Question

Question

- Part A What mass of ammonium chloride should be added to 2.45 L of a 0.145 M NH3 in order to obtain a buffer with a pH of 9

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Answer 1

Answer #1

For NH3 Kb = 1.8 x 105 i. pkb = - log Kb = 4.74 Moles of NH₃ = 2.45L X 0.145 M = 0.35525 moes pH = 9.65 poH = 14-9.65 = 4.35

Answer 2

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