What Is the Free Cu²⁺ Concentration If 0

question 60

Multiple Choice

What is the free Cu²⁺ concentration if 0.020 M Cu²⁺ solution is mixed with an equal volume of 4.0 M NH₃? Kf for [Cu(NH₃) ₄]²⁺ is 1.1 × 10¹³.

• A) 5.7 × 10^-15
• B) 2.8 × 10^-16
• C) 6.2 × 10^-17
• D) 4.5 × 10^-15
• E) 1.7 × 10^-16

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