An Ammonia Buffer Contains NH₃:NH₄⁺ in a Ratio of 0

question 42

Multiple Choice

An ammonia buffer contains NH₃:NH₄⁺ in a ratio of 0.4 moles:0.6 moles (pK = 9.75) . What will be the pH if you add 0.01 moles of HCl to this buffer?

• A) 8.98
• B) 9.04
• C) 9.25
• D) 9.46
• E) 9.52

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