(i) Plot the species distribution diagram for chloro complexation of lead (Pb) based on the log of the overall formation constants. * log(Bn) 0.9 log(Bra) 1.3 log(Brs) 1.5
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- i) Silver ion (Ag+) reacts with SCN- ion to form silver thiocyanate (AgSCN). What change will the student observe when a solution containing Ag+ ion is added to the mixture? ii) Briefly explain how your answer to is consistent with Le Chatelier’s principle.How is the stability of a co-ordination compound in solution decided ?How is the dissociation constant of a complex defined?Calculate the conditional formation constant (K'' NiY) of the [NiY]2- complex in 0.050 M NH3 and 0.090 M NH4Cl buffer solution. The formation constants of nickel amine complexes are respectively K1 = 102.75, K2 = 102.20, K3 = 101.69, K4 = 101.15, K5 = 100.71, K6 = 10-0.01. (KNiY = 4.2x1018, KNH3 = 1.74x10-5)
- For the aqueous [Ag(CN)2]^- complex Kf =3.0x10^20 at 25°C.Suppose equal volumes of 0.0068M AgNO3 solution and 0.32M KCN solution are mixed. Calculate the equilibrium molarity of aqueous Ag^+ ion.Round your answer to 2 significant digits.Consider the coordination complex with the formula [CoBr(NH3)5]SO4. Identify the Lewis acid(s) and Lewis base(s) in the complex and explain how you made your choice(s). What is the coordination number for the transition metal cation in this complex? Explain how you know.Sequential formation constants for the water molecule substitution reactionby Br- ions in the hexaaquacadmium complex ion (II) are: Kf1 = 36.3; Kf2 = 3.47; Kf3 = 1.15; Kf4 = 2.34.Explain the factors that influence the formation constant and why Kf4 is greater than Kf3.
- For the aqueous [Hg(NH3)4]2+ complex Kf=1.911019 at 25°C. Suppose equal volumes of 0.0090M HgNO32 solution and 0.36M NH3 solution are mixed. Calculate the equilibrium molarity of aqueous Hg2+ ion. Round your answer to 2 significant digitsWrite the individual and the overall formation constants for the complexation of Ni with Cl which forms a 1:4 complex.TRUE OR FALSE: Because of chelate effect, the formation reaction of the complex tris(ethylenediamine)cobalt(III) has a smaller negative ΔGrxn and a larger positive ΔSrxn compared to the formation of hexaamminecobalt(III).