Given the coordination compound Ag_2[Co(NH_3)_2 CI_4]: a. What is the central me
ID: 521849 • Letter: G
Question
Given the coordination compound Ag_2[Co(NH_3)_2 CI_4]: a. What is the central metal of the complex? _____ b. What is (are) the ligand(s)? ____ c. What is (are) the counterion(s)? ____ d. What is the coordination number on the central metal? ____ e. What is the charge on the complex? ____ f. What is the oxidation number on the central metal? ____ g. What is the geometry of the complex ion? _____ h. Name the compound. ____ Complete the following nuclear reactions a. The alpha-decay of Th-232. _____ b. _____ rightarrow^63 _29 Cu +^0 _-1 beta Calculate the change in Gibbs Energy, Delta G, for the following reaction. 2N_2H_4 (1) + 2 HG_2O (g) rightarrow 4 NHG_3 (g) + O_2 (g)Explanation / Answer
(III)
(a) The central metal is Co
(b) The ligands are NH3 and Cl
(c) The counter ion is Ag+
(d) Coordination number = 2 NH3 + 4 Cl = 6
(e) Charge of complex = 0
(f) Oxidation state of metal ion is,
2 (+1) + x + 2 (0) + 4 (-1) = 0
x -2 = 0 x = + 2
(g) Geometry is octahedral
(h) Silver diamminetetrachlorocobatate(II)
(IV)
(a) 23290Th -----------> 42He + 22888Ra
(b) 6328Ni ----------> 6329Cu + 0-1e
(V)
deltaG0rxn = 4 deltaG0f(NH3) + deltaG0f(O2) - 2 deltaG0f(N2H4) - 2 deltaG0f(H2O)
= 4(-16.3) + 0.000 - 2 (-) - 2 (-228.4)
Knowing the standard gibbs free energy of formation of liquid hydrazine we can be able to calculate the gibbs free energy change of the given reaction.
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