A student obtained a sample impure ASA sample. He hydrolyzedthe ASA with NaOH and heated the mixture to produce thesalicylate dianion:C6H4 (OCOCH3) (COOH) + 3OH- → C6H4 (0) (COO) + 2H₂O + CH3COONext the student then acidified the mixture with FeCl3-KCI-HCIsolution to produce the magenta complex oftetraaquosalicylatoiron (III) ion:C6H4 (0) (COO) + H3O+C6H4 (OH) (COO-) + H₂O3+C6H4 (OH) (COO) + Fe(H₂O) ³+ [C6H4 (O) (COO) Fe(H₂O)] ++ H₂O + H₂O* The complex ion is sensitive to pH, therefore the solution was buffered to pH 1.90 to avoidthe formation of di- and tri-salicylate complex of iron (III).Before the concentration could be determined through UV-Visspectroscopy, the student needs to know the wavelength of lightthat was most absorbed by the complex ion in order to set thespectrometer properly. The student calibrated the spectrometerby setting the transmittance to 100 % with FeCl3-KCI-HCI solutionas reference. The data is as follows:Wavelength(nm)580570560550540535530525520510500490Absorbance0.1190.1980.2030.2150.2200.2280.2400.2550.2470.2160.1990.073a.) Construct the absorption spectra of tetraaquosalicylatoiron(III) complex ion.

The absorption spectra is a plot of absorbance vs wavelength. The absorbance is taken on the y-axis…

Answered: a.) Construct the absorption spectra of…

Science

Chemistry

a.) Construct the absorption spectra of tetraaquosalicylatoiron (III) complex ion.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: k) The reactions of Group I and Group II with ammonia and chloride ligands give distinctly different…

A: Group I and group II elements are alkali or alkaline earth metals with valency +1 and+2…

Q: The oxalate ligand, [C:O4]²*, is a bidentate ligand and the structure of a complex ion [Fe(ox);]² is…

A: The given complex ion is a coordination complex with central metal ion (Fe3+) having 6-coordinate…

Q: Mo(PMes)3(C6HS)2

A: The given complex is of the molybdenum which is a a d-group metal (transition metal) and formed…

Q: Show all electronic transition in the spectrum of a d3 complex. Scetch the appropriate spectrum.

Q: (b) What are the effects of r-donor and t-acceptor ligands on the splitting of metal d orbitals in…

A: Answer- When the ligands approach the central metal ion, d- or f-subshell degeneracy is broken due…

Q: By using the Tanabe-Sugano diagram, explain why there are only two absorption bands in the UV-Vis…

A: Tanabe-Sugano diagrams are used to explain the electronic spectra of the different compounds.

Q: Why is the absorbance spectrum of the iron (II) complex obtained first prior to measuring the…

A: Absorbance is measure of incident light absorbed by a compound. It is proportional to concentration…

Q: What structural distortions would you expect to occur in the complex LnM( eta 4- butadiene) if the…

A: If the ligands L were made more electron releasing means electron donation takes place from ligand…

Q: By using valence bond theory and ligand field theory, prove that [Ru(OMe)2(PMe:)4] is a paramagnetic…

Q: Condition: Color intensity of the complex Fe³+ (aq) + SCN (aq) Fe(SCN)²+ I. addition of 0.2M AgNO3…

Q: Calculate the crystal field splitting energy of a complex that absorbs 453 nm light in Joules.…

Q: Criticize and correct the following statement: strong-fieldligands always give rise to low-spin…

A: The strength of the ligand field is used for estimating the colour of coordination compounds by…

Q: Which of the following spectroscopic methods can be used to estimate the ratio of a metal-ligand…

Q: Explain the difference between double salt and metal complexes with examples?

Q: Bearing in mind the Jahn-Teller theorem, explain what type of distortion can be expected for [VCl,]³…

Q: Work out the stoichiometries and structures of the neutral complexes, chromium carbonyl, rhenium…

Q: Calculate the crystal field splitting energy of a complex that absorbs 481 nm light in Joules.…

Q: Titanium(IV) and vanadium(V) form colored complexes when treated with hydrogen peroxide in 1 M…

A: According to Beer's law, the absorbance of a mixture is sum of each component represented as, A =…

Q: Stating Jahn-Teller hecrem, indiçate which among the complex ions ill ĮC{CN}6}°¯, 13- Mn(CN6…

Q: A and B form complexes with H,O, that absorb in the visible portion of the electromagnetic spectrum.…

A: This is a problem based in beers-lambert law of mixtures.

Q: C1....... Cu ***.... CI 5. Answer the following questions related to crystal field splitting. A. For…

Q: Demonstrate and explain the unfolding of the crystalline field according to the Jahn Teller Effect…

A: In this question, according to the Jahn Teller Effect, the unfolding of the crystalline field to…

Q: Let X- be a ligand and CrX64- a high-spin octahedral complex ion. a) Draw the splitting energy…

Q: 2. Count the number of electrons for the following complexes. (b) (a) 'CI CA. Re "CI

Q: EtyN: Yotate C-C bond Trans Now bothl@) cis to each other oct both o rans to each other not act as…

Q: Describe the state of hybridization, the shape and the magnetic’behaviour of the following…

A: The magnetic behaviour is known by the formula, μ =n(n+2)μ =magnetc momentn =number of unpaired…

Q: 6 points The complex [Co(NH3)6] absorbs light at a wavelength of 465 nm. What is the ligand field…

A: Solution: Given ,…

Q: Consider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm…

A: Since you have asked a multiple sub-part question, we will solve first 3 sub-parts for you. For the…

Q: 20.- Explain the steps in the substitution of the square planar complex of [Pt(CI)4]2 reacting (1 to…

Q: Electronic spectra of transition metals complexes are deduced from the term symbols. Please provide…

A: The absorption of light by transition metal complexes is a central phenomenon in the field of…

Q: QUESTION 1. The complex [Ni(salicylaldato)2(H₂O)2] can be prepared by reacting two equivalents of…

Q: li Calculate the magnetic moment for a complex of Ho3,

Q: (b) A. for the octahedral complex [Mn(OH2)6]3+ was measured to be 21000 cm-1. (i) Explain how Aois…

Q: (a) UV/Vis spectra of [Mn(H2O)]*, [Co(H2O)%]**, and [CoCla are dominated by transitions that have…

Q: Two transition metal complexes, FA, & GB, (where A & B represent the ligands; and F and G the…

A: Here I have calculated wavelength from the frequency data , which is quite easy. Next I have matched…

Q: Find SALCs and construct the MO diagram for a transition metal complex with octahedral symmetry.

Q: None

A: 1 effective atomic number (Een)= Inert gas configuration - (atomic number - 10) At 2s^2 2p^6…

Q: The factor determining the mechanism observed in the substitution reactions of square plane…

A: here, for the nucleophilic substitution reaction Sn2 for the inorganic reaction mechanism yes, This…

Q: The K, for (Cu(en),1* is much larger than the one for (Cu(NH,),]2+. This difference is primarily an…

A: In the complex [Cu(en)2]2+ the ligand ethylene diamine (en) is a chelating ligand (multi dentate…

Q: A complex only absorbs light with an energy of 4.42x10-19 J. What color do we see for the complex?

Q: Calculate the crystal field splitting energy of a complex that absorbs 474 nm light in Joules.…

A: Complex absorbed wavelength is 474 nmCalculate the crystal field splitting energy ( joules )

Q: Demonstrate and explain the unfolding of the crystalline field according to the Jahn Teller Effect…

A: Jahn teller distortion It is a geometric distortion of non-linear molecular systems which reduces…

Question

A student obtained a sample impure ASA sample. He hydrolyzed
the ASA with NaOH and heated the mixture to produce the
salicylate dianion:
C6H4 (OCOCH3) (COOH) + 3OH- → C6H4 (0) (COO) + 2
H₂O + CH3COO
Next the student then acidified the mixture with FeCl3-KCI-HCI
solution to produce the magenta complex of
tetraaquosalicylatoiron (III) ion:
C6H4 (0) (COO) + H3O+
C6H4 (OH) (COO-) + H₂O
3+
C6H4 (OH) (COO) + Fe(H₂O) ³+ [C6H4 (O) (COO) Fe(H₂O)] ++ H₂O + H₂O*

The complex ion is sensitive to pH, therefore the solution was buffered to pH 1.90 to avoid
the formation of di- and tri-salicylate complex of iron (III).
Before the concentration could be determined through UV-Vis
spectroscopy, the student needs to know the wavelength of light
that was most absorbed by the complex ion in order to set the
spectrometer properly. The student calibrated the spectrometer
by setting the transmittance to 100 % with FeCl3-KCI-HCI solution
as reference. The data is as follows:
Wavelength
(nm)
580
570
560
550
540
535
530
525
520
510
500
490
Absorbance
0.119
0.198
0.203
0.215
0.220
0.228
0.240
0.255
0.247
0.216
0.199
0.073
a.) Construct the absorption spectra of tetraaquosalicylatoiron
(III) complex ion.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Absorption spectra

VIEW

Step 2: Absorption spectrum of tetraaquisalicylatoiron(III) complex ion

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The absorbance of a 0.1 M solution of a complex was 0.15 at max. What is the value of molar absorptivity for this complex? What is the geometry of this complex?
. Explain why octahedral coordination complexes withthree and eight d electrons on the central metal atom areparticularly stable. Under what circumstances would youexpect complexes with five or six d electrons on the central metal atom to be particularly stable?
The CN ligand can act as a o donor and a í acceptor. The o donor orbital is anti- bonding with respect to the C-N bond. Given that the v(CN) stretching frequency in the IR spectrum of [Pt(CN)4]² is 2170 cm¹ while free CN-exhibits v(CN) at 2080 cm¹¹, which property, o donation or acceptance dominates in this complex? Provide a clear explanation of your reasoning.
6) Complexes with five d electrons (d) are sometimes tetrahedral and sometimes octahedral. Consider the high-spin complexes [FeCl] and [FeCI]-. Knowing the splitting energy of the octahedral complex A.= 11000 cm-, deduce that corresponding to the tetrahedralA,(cm-1) 3= ( five significant figures)
A shortcut to finding optical isomers is to see if the complexhas a plane of symmetry—a plane passing through the metal atom such that every atom on one side of the plane is matched byan identical one at the same distance from the plane on the otherside. Any planar complex has a plane of symmetry, since allatoms lie in one plane. Use this approach to determine whetherthese exist as optical isomers: (a) [Zn(NH₃)₂Cl₂] (tetrahedral);(b) [Pt(en)₂]²⁻, (c) trans-[PtBr₄Cl₂]²⁺; (d) trans-[Co(en)₂F₂]⁺;(e)cis-[Co(en)₂F₂]⁺.
Write the name of the structure and the magnetic behaviour of each one of the following complexes: (i) [Pt(NH3)2Cl(N02)] (ii) [CO(NH3)4 Cl2] Cl (iii) Ni(CO)4 (At. nos. Co = 27, Ni = 28, Pt = 78)
! ( please do correctly )
Why does orbital mixing result in pale coloured transition metal complexes? Use diagrams to explain your answer.
Compare the methyl isocyanide (C=NCH3) ligand to C=O (carbonyl) with regards to its o donor ability and n-backbonding ability. Discuss. Clearly explain the origin of any differences in metal- ligand bonding between the two ligands.
please answer the following question: 1. discuss how crystal field theory satisfactorily explains the existence of colour in some coordination complexes
f) ) "Crystal field theory provides a basis for explaining the features of transition metal complexes" Discuss this statement fully. g) Briefly explain why EDTA is an excellent example of a chelating ligand.
help