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If 135g of NiCl2 [Ni(NH3)6]2+\left[ \mathrm { Ni } \left( \mathrm { NH } _ { 3 } \right) _ { 6 } \right] ^ { 2 + }

Question 81

Multiple Choice

If 13.5g of NiCl2.6H2O is added to 500mL of 1.50M aqueous ammonia, what is the equilibrium concentration of Ni2+(aq) ? The complex formed is [Ni(NH3) 6]2+\left[ \mathrm { Ni } \left( \mathrm { NH } _ { 3 } \right) _ { 6 } \right] ^ { 2 + } Given Kf = 5.5×108.


A) 5.4×10-10
B) 6.7×10-9
C) 1.5×10-10
D) 8.7×10-8
E) 2.1×10-9

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