For NH₃, PK_b = 4

question 21

Multiple Choice

For NH₃, pK_b = 4.74.What is the pH of an aqueous buffer solution that is 0.050 M NH₃(aq) And 0.20 M NH₄Cl(aq) ?

• A) 9.86
• B) 5.34
• C) 9.26
• D) 8.66
• E) 4.14

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