Homework Answers
Add Answer to:
5. In Part 2 of this experiment you will synthesize (Co(NH3),CIJCI. a) Write the balanced equations...
4. In Part 1 of this experiment, CoCl, 6H,O reacts with ammonium chloride, ammonium hydroxide, and...
4. In Part 1 of this experiment, CoCl, 6H,O reacts with ammonium chloride, ammonium hydroxide, and hydrogen peroxide to produce [Co(NH3)Cl3 and water. a) Write the balanced equation for this reaction. b) What is the purpose of adding the charcoal? c) To the test tube containing CoCl2 6H20, NH Cl, and NH OH, 3 mL of 10% H2O2 is added. Why must the H2O, be added slowly, in 1 mL portions? What is the purpose of adding the H2O2? Go...
SYNTHESIS OF TRANSITION METAL COORDINATION COM 3. Ethylenediamine ("en" in short-hand notation) has two amine group...
SYNTHESIS OF TRANSITION METAL COORDINATION COM 3. Ethylenediamine ("en" in short-hand notation) has two amine groups, one at each end of a two-carbon chain, NH,CH,CH,NH. Each nitrogen in NH,CH,CH_NH, has a lone pair that coordinates to the metal. Thus, one NH CH CH NH, ligand, takes up two coordina- tion sites. a) Draw and label the structures of the cis and trans isomers of Co(en),C1,CI. b) What is the coordination number for (Coſen),C1,CI? c) Determine the oxidation state of the...
4. (2 points) The absorbance maxima observed for the following octahedral cobalt complexes ([Co(NH)* max [Co(NH3)3Cl]...
4. (2 points) The absorbance maxima observed for the following octahedral cobalt complexes ([Co(NH)* max [Co(NH3)3Cl] nmax = 680 nm) can be identified with transitions involving d-electrons. = 470 nm, [Co(NH);CI]2* Amax = 560 nm, [Co(NH),Cl2]* max = 630 nm, and What can be said about the trend observed in these complexes with relation to their crystal field splitting energies? Rank from LOWEST to HIGHEST splitting energies. а. b. Given the complexes above and the trend in absorbance maxima for...
CALCULATION OF % YIELD Write balanced equations for formation of [Co(en)2Cl2] and for its oxidation by...
CALCULATION OF % YIELD Write balanced equations for formation of [Co(en)2Cl2] and for its oxidation by air to [Co(en)2Cl2]CI. Exercise 1: Solvent-free Synthesis of Metallophthalocyanine Pigments ????? + ????? 1. CoCl2.6H2O+ 2 HNCH,CHÚNH, [Co(en)2C1] [Co(en),Cl]* + ?? i.e.(Coz" ....Co3) 02+2H20+ 4e ??????? Overall redox ? [Co(en),Cl2]+O2+2H20 ?[Co(en),Cl2)* +40H ?[Co(en) Cl2]+O2+2H2O+4?? 4[Co(en) Cl]CI + 4H20 Overall reaction | ?CoCl2.6H2O + ?? HNCHCHANH,+O+4HC + 4[Co(en) Cl2]Cl+ ????
(Before you do the experiment) review, in the following equations for familiar reactions, write an R over the red...
(Before you do the experiment) review, in the following equations for familiar reactions, write an R over the reducing agent and an over sent At the right, indicate the change in oxidation mumber per atom for each element whose oxidation number changes. If there is no change, write in "no change in oxidation number Element oxidized Oxidation number increase per atom Oxidation number decrease per atom Element reduced Reaction 2 Al(s) + 3 Cl2(g) → 2 A13+ + 6 CI-...
Use data above answer questions 2,3,4 EXPERIMENT: Activity of Metals and Ions Part I: n this...
Use data above answer questions 2,3,4
EXPERIMENT: Activity of Metals and Ions Part I: n this experiment, you will examine the relative tendencies for certain elements to replace one compounds and will use your observations to arrange order of reactivity. The reactions will all be single replacement reactions in which a metallic element is replacing a metal ion in a compound. another in them in metal metal ion in compound Add a small piece of each of the metals listed...
Prelab questions 1,2, and 3 and Part E questions Also, write a flowchart of the experiments...
Prelab questions 1,2, and 3 and Part E questions Also, write a flowchart of the experiments process in each part. EXPERIMENT 3 DETERMINATION OF Δo The d orbitals of a metal ion in an octahedral ligand or crystal field are split into a higher energyset (eg) and a lower energy set (t2g) as shown in the following energy level diagram. 11 The energy difference between the upper and lower energy levels is Δo, the octahedral crystal field splitting. The degree...
When you write the answers, please write the page number for which the question is located....
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
1. Which of the following are the sites within the human body where carbon dioxide and...
1. Which of the following are the sites within the human body where carbon dioxide and oxygen are exchanged? A. Alveoli B. Arteries C. Synapses D. Venules 2. Which of the following describes the most important reason for repeating an experimental investigation? A. To verify the validity of the original findings B. To expand upon the original investigation C. To manipulate the independent variable D. To attempt to disprove the hypothesis 3. Lithium has an atomic number of 3 and...
4. In Part 1 of this experiment, CoCl, 6H,O reacts with ammonium chloride, ammonium hydroxide, and hydrogen peroxide to produce [Co(NH3)Cl3 and water. a) Write the balanced equation for this reaction. b) What is the purpose of adding the charcoal? c) To the test tube containing CoCl2 6H20, NH Cl, and NH OH, 3 mL of 10% H2O2 is added. Why must the H2O, be added slowly, in 1 mL portions? What is the purpose of adding the H2O2? Go...
SYNTHESIS OF TRANSITION METAL COORDINATION COM 3. Ethylenediamine ("en" in short-hand notation) has two amine groups, one at each end of a two-carbon chain, NH,CH,CH,NH. Each nitrogen in NH,CH,CH_NH, has a lone pair that coordinates to the metal. Thus, one NH CH CH NH, ligand, takes up two coordina- tion sites. a) Draw and label the structures of the cis and trans isomers of Co(en),C1,CI. b) What is the coordination number for (Coſen),C1,CI? c) Determine the oxidation state of the...
4. (2 points) The absorbance maxima observed for the following octahedral cobalt complexes ([Co(NH)* max [Co(NH3)3Cl] nmax = 680 nm) can be identified with transitions involving d-electrons. = 470 nm, [Co(NH);CI]2* Amax = 560 nm, [Co(NH),Cl2]* max = 630 nm, and What can be said about the trend observed in these complexes with relation to their crystal field splitting energies? Rank from LOWEST to HIGHEST splitting energies. а. b. Given the complexes above and the trend in absorbance maxima for...
CALCULATION OF % YIELD Write balanced equations for formation of [Co(en)2Cl2] and for its oxidation by air to [Co(en)2Cl2]CI. Exercise 1: Solvent-free Synthesis of Metallophthalocyanine Pigments ????? + ????? 1. CoCl2.6H2O+ 2 HNCH,CHÚNH, [Co(en)2C1] [Co(en),Cl]* + ?? i.e.(Coz" ....Co3) 02+2H20+ 4e ??????? Overall redox ? [Co(en),Cl2]+O2+2H20 ?[Co(en),Cl2)* +40H ?[Co(en) Cl2]+O2+2H2O+4?? 4[Co(en) Cl]CI + 4H20 Overall reaction | ?CoCl2.6H2O + ?? HNCHCHANH,+O+4HC + 4[Co(en) Cl2]Cl+ ????
(Before you do the experiment) review, in the following equations for familiar reactions, write an R over the reducing agent and an over sent At the right, indicate the change in oxidation mumber per atom for each element whose oxidation number changes. If there is no change, write in "no change in oxidation number Element oxidized Oxidation number increase per atom Oxidation number decrease per atom Element reduced Reaction 2 Al(s) + 3 Cl2(g) → 2 A13+ + 6 CI-...
Use data above answer questions 2,3,4
EXPERIMENT: Activity of Metals and Ions Part I: n this experiment, you will examine the relative tendencies for certain elements to replace one compounds and will use your observations to arrange order of reactivity. The reactions will all be single replacement reactions in which a metallic element is replacing a metal ion in a compound. another in them in metal metal ion in compound Add a small piece of each of the metals listed...
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
Most questions answered within 3 hours.
-
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 20 minutes ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 1 hour ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 1 hour ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 3 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 3 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 4 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 5 hours ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 5 hours ago -
implement a program that reads a number of rows and a symbol.
The program will draw...
asked 5 hours ago -
Assume that when adults with smartphones are randomly selected,
45% use them in meetings or classes....
asked 6 hours ago -
Determine the number of formula units of
Na2SO4 and moles of oxygen contained in 8.11
moles...
asked 6 hours ago -
Explain in steps on the following code
What would be the output when executed
using System;...
asked 6 hours ago