What Is the PH After the Addition of 0

question 50

Multiple Choice

What is the pH after the addition of 0.050 moles of NaOH to 1.00 L of a 0.500 M NH₃ / 0.500 M NH₄Cl buffer solution?
Assume that there is no volume change on addition of the NaOH. K _b for NH₃ = 1.8×10 ^{- 5}.

• A) 4.74
• B) 4.66
• C) 9.34
• D) 9.17
• E) 9.53

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