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Question
What is the pH of a buffer system prepared by dissolving 10.70 grams of NH4Cl and 25.00 mL of12 M NH3 in enough water to make 1.000 L of solution? Kb = 1.80 10-5 for NH3.
A) 9.08
B) 9.26
C) 9. 43
D) 11. 32
Answer
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