State what is the ph of a buffer prepared by adding the acid

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Reference no: EM13183347

1. How many grams of dry NH4Cl need to be added to 1.50 L of a 0.200 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.60? Kb for ammonia is 1.8e-5

2 Part A:.What is the pH of a buffer prepared by adding 0.45 mol of the waek acid HA to 0.608 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66e-7

3.Part B: What is the pH after 0.150mol of HCl is added to the buffer from part A? Assume no volume change on the addition of the acid.

4.Part C: What is the pH after 0.195mol of NaOH is added to the buffer from Part A? Assume no volume change on the addition of the base.

Reference no: EM13183347

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