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If 200 G of Cu(NO3)2 [Cu(NH3)4]2+\left[ \mathrm { Cu } \left( \mathrm { NH } _ { 3 } \right) _ { 4 } \right] ^ { 2 + }

Question 39

Multiple Choice

If 20.0 g of Cu(NO3) 2.6H2O is added to 750mL of 1.00M aqueous ammonia, what is the equilibrium concentration of Cu2+ (aq) ? The complex formed is [Cu(NH3) 4]2+\left[ \mathrm { Cu } \left( \mathrm { NH } _ { 3 } \right) _ { 4 } \right] ^ { 2 + } Given Kf = 2.1×1013.


A) 4.5×10-12
B) 2.6×10-14
C) 1.5×10-13
D) 6.4×10-14
E) 8.3×10-12

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