![b) What quantum mechanical effect is responsible for the instability of the complex [Cu(H20).]2+ relative to [Cu(H20):)?](http://img.homeworklib.com/questions/9eb77690-088f-11ea-9418-7b57576a79c0.png?x-oss-process=image/resize,w_560)
Homework Answers
Ans. b) it's very easy The Jahn Teller effect is responsible for the tetragonal distortion of the complex [Cu(H2O)6]2+, which possess regular octahedral geometry That's why [Cu(H2O)4]2+ is more reliable.
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b) What "quantum mechanical effect" is responsible for the instability of the complex [Cu"(H20).]2+ relative to [Cu...
How many stereoisomers are there for the square planar complex ion [Cu(NH3)2(H20)cijt? o A. 3 B.1...
How many stereoisomers are there for the square planar complex ion [Cu(NH3)2(H20)cijt? o A. 3 B.1 0.2 D.4
A quantum-mechanical effect called "tunneling" is important in electron transfer processes in biology. Quantum effects are...
A quantum-mechanical effect called "tunneling" is important in electron transfer processes in biology. Quantum effects are thought to be important in other biological processes as well. First: research "quantum tunneling." Read a basic (Wikipedia-level, e.g.) description to obtain an intuitive grasp of what quantum-mechanical tunneling Then: research "quantum effects in biology." Any article on this topic is likely to include some discussion of electron transfer in photosystems; find a source that includes some discussion of other processes as well. Find...
Electronic absorption spectrum of copper ammine complexes (i) Draw the electron distribution in the d orbitals of an octahedral Cu(II) complex and show the electronic transition responsible for the...
Electronic absorption spectrum of copper ammine complexes
(i) Draw the electron distribution in the d orbitals of an
octahedral Cu(II) complex and show the electronic transition
responsible for the absorptions observed.
(ii) Assign the transition you observe for each complex and give
the value of Δ (in cm-1).
Visible absorption spectra of Cu(ll) complexes 1.2 Cu (H20)2(NH3)4 Cu (H2O)6 Cu (H20)3(NH3)3 0.8 0.6 Cu (H20)s(NH3) Cu (H20)4(NH3)2 0.4 0.2 850 500 550 600 650 700 750 800 900 450 nm...
a) and b) (a) The simplest quantum mechanical model for describing electrical conduction in a metal...
a) and b)
(a) The simplest quantum mechanical model for describing electrical conduction in a metal is the free electron gas in three dimensions. The density of states D(E) is given as: V 2m D(E)- 277 An estimate of the average electron energy can be obtained using the following expression: SEN(E)dE (E) - TH(E)DE where n(E)dE is the number of occupied electron states in an energy interval E to E + dE. Use a suitable expression for n(E) and introduce...
5) The molecular complex Cu(OH):- dissociates in water by the process Cu(OH)2(aq) = Cut(aq) + 4...
5) The molecular complex Cu(OH):- dissociates in water by the process Cu(OH)2(aq) = Cut(aq) + 4 OH Kc - 7.7 x 10-17 The initial concentration of Cu(OH)2- in an aqueous solution is 0.0140 M. No Cu?or OH ions are initially present. What is the concentration of Cution present when equilibrium is achieved? [12 points)
Name Questions Section 1 1. HNO3(aq) + Cu(s) → Cu(NO3)2 (aq) + _NO2(g) + __ H20...
Name Questions Section 1 1. HNO3(aq) + Cu(s) → Cu(NO3)2 (aq) + _NO2(g) + __ H20 (1) net ionic equation: Observation: Reaction Type: What is in the solution after the reaction is complete? What color is the gas that evolved from this reaction? 2. _ Cu(NO3)2 (aq) +_ NaOH(aq) → Cu(OH)2 (5) + _ NaNO3(aq) net ionic equation: Observation: Dark blue and thick Reaction Type: What color and texture is the suspended product in this reaction? What is formed in...
What is the product containing copper after the reaction of Cu(NO3)2(aq) + NaOH --> Cu(s) O...
What is the product containing copper after the reaction of Cu(NO3)2(aq) + NaOH --> Cu(s) O Cu(NO3)2(aq) Cuo(s) Cu(OH)2(s) CuSO4(aq) none of these The previous problem had you calculate the mass of carbon dioxide produced when a given mass of potassium carbonate reacted with a given volume of nitric acid. In this reaction with the previously given amounts, what is the limiting reactant? K2CO3 (aq) + 2 HNO3 (aq) --> 2KNO3 (aq) + H20 (1) + CO2 (g) O CO2...
oct Original Color (M2+ H20) Complex Color (M2+/ Ligand) de calidad superior de haute qualité CI- Complex ion Formula E...
oct Original Color (M2+ H20) Complex Color (M2+/ Ligand) de calidad superior de haute qualité CI- Complex ion Formula Effect of H20 Cu2+ Complex ions: [Cucl.]2- changed BLUE ZEHIO NH3 dark en BLUE SCN- green Ni2+ Complex ions: CI- NH3 GREEN Ligand Effect of OH- green BLUE no change. bue I (NH) no change. Changed to (percip). cloudy/lignt bowe dariple ese (Haiche, no change. no change BLUE line neon [Cursen) i no change. Shangcaute changed to peras) Ligand cloudy out...
a) Draw a d orbital electronic configuration of a distorted Cu" octahedral complex: Compression along the...
a) Draw a d orbital electronic configuration of a distorted Cu" octahedral complex: Compression along the z axis elongation along z axis b) The distortions in Cul complexes are often the consequence of which effect? c) What other metal ions display this effect?
The complex ion Cu(NH3)42+ is formed in a solution made of 0.0100 M Cu(NO3)2 and 0.300...
The complex ion Cu(NH3)42+ is formed in a solution made of 0.0100 M Cu(NO3)2 and 0.300 M NH3. What are the concentrations of Cu2 , NH3, and Cu(NH3)42+ at equilibrium? The formation constant*, Kf, of Cu(NH3)42+ is 1.70 × 1013
How many stereoisomers are there for the square planar complex ion [Cu(NH3)2(H20)cijt? o A. 3 B.1 0.2 D.4
A quantum-mechanical effect called "tunneling" is important in electron transfer processes in biology. Quantum effects are thought to be important in other biological processes as well. First: research "quantum tunneling." Read a basic (Wikipedia-level, e.g.) description to obtain an intuitive grasp of what quantum-mechanical tunneling Then: research "quantum effects in biology." Any article on this topic is likely to include some discussion of electron transfer in photosystems; find a source that includes some discussion of other processes as well. Find...
Electronic absorption spectrum of copper ammine complexes
(i) Draw the electron distribution in the d orbitals of an
octahedral Cu(II) complex and show the electronic transition
responsible for the absorptions observed.
(ii) Assign the transition you observe for each complex and give
the value of Δ (in cm-1).
Visible absorption spectra of Cu(ll) complexes 1.2 Cu (H20)2(NH3)4 Cu (H2O)6 Cu (H20)3(NH3)3 0.8 0.6 Cu (H20)s(NH3) Cu (H20)4(NH3)2 0.4 0.2 850 500 550 600 650 700 750 800 900 450 nm...
a) and b)
(a) The simplest quantum mechanical model for describing electrical conduction in a metal is the free electron gas in three dimensions. The density of states D(E) is given as: V 2m D(E)- 277 An estimate of the average electron energy can be obtained using the following expression: SEN(E)dE (E) - TH(E)DE where n(E)dE is the number of occupied electron states in an energy interval E to E + dE. Use a suitable expression for n(E) and introduce...
5) The molecular complex Cu(OH):- dissociates in water by the process Cu(OH)2(aq) = Cut(aq) + 4 OH Kc - 7.7 x 10-17 The initial concentration of Cu(OH)2- in an aqueous solution is 0.0140 M. No Cu?or OH ions are initially present. What is the concentration of Cution present when equilibrium is achieved? [12 points)
Name Questions Section 1 1. HNO3(aq) + Cu(s) → Cu(NO3)2 (aq) + _NO2(g) + __ H20 (1) net ionic equation: Observation: Reaction Type: What is in the solution after the reaction is complete? What color is the gas that evolved from this reaction? 2. _ Cu(NO3)2 (aq) +_ NaOH(aq) → Cu(OH)2 (5) + _ NaNO3(aq) net ionic equation: Observation: Dark blue and thick Reaction Type: What color and texture is the suspended product in this reaction? What is formed in...
What is the product containing copper after the reaction of Cu(NO3)2(aq) + NaOH --> Cu(s) O Cu(NO3)2(aq) Cuo(s) Cu(OH)2(s) CuSO4(aq) none of these The previous problem had you calculate the mass of carbon dioxide produced when a given mass of potassium carbonate reacted with a given volume of nitric acid. In this reaction with the previously given amounts, what is the limiting reactant? K2CO3 (aq) + 2 HNO3 (aq) --> 2KNO3 (aq) + H20 (1) + CO2 (g) O CO2...
oct Original Color (M2+ H20) Complex Color (M2+/ Ligand) de calidad superior de haute qualité CI- Complex ion Formula Effect of H20 Cu2+ Complex ions: [Cucl.]2- changed BLUE ZEHIO NH3 dark en BLUE SCN- green Ni2+ Complex ions: CI- NH3 GREEN Ligand Effect of OH- green BLUE no change. bue I (NH) no change. Changed to (percip). cloudy/lignt bowe dariple ese (Haiche, no change. no change BLUE line neon [Cursen) i no change. Shangcaute changed to peras) Ligand cloudy out...
a) Draw a d orbital electronic configuration of a distorted Cu" octahedral complex: Compression along the z axis elongation along z axis b) The distortions in Cul complexes are often the consequence of which effect? c) What other metal ions display this effect?
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