The photographs below show what occurs when you add ammonia to aqueous nickel(II) nitrate and then add

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The photographs below show what occurs when you add ammonia to aqueous nickel(II) nitrate and then add ethylenediamine (NH2CH2CH2NH2) to the intermediate blue-purple solution.[Ni(H,O)]2*(aq) + 6 NH3(aq) green [Ni(NH3)]+(aq) + 6 H,O() blue-purple K

[Ni(NH3)]2+(aq) + 3 NH,CH,CH, NHz(aq) blue-purple =[Ni(NH,CH,CH,NH,)s]2+(aq) + 6 NH,(aq) violet K

(a) Write a chemical equation for the formation of [Ni(NH2CH2CH2NH2)3]2+ from [Ni(H2O)6]2+ and ethylenediamine, and relate the value of K for this reaction to K1 and K2.
(b) Which species, [Ni(NH2CH2CH2NH2)3]2+,[Ni(NH3)6]2+, or [Ni(H2O)6]2+ is the most stable? Explain.Aqueous nickel (II) nitrate [Ni(H0)]+ Add ammonia NH3 [Ni(NH3)6]+ Add ethylenediamine NHCH,CH,NH2

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Chemistry And Chemical Reactivity

ISBN: 9780357001172

10th Edition

Authors: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

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