4. A solution containing complexes of Bi (III) and thiourea has a molar absorptivity of 9.32 x 103 L/cm.M at 470 nm. Calculate the absorbance of a 6.24 x 10-5 M solution in a 1.00 cm cell. O 58.15 x 10-2 O 5.815 x 109 O 1.494 x 108 O 5.815 x 10-7
Q: The d-electron count of the transition metal center for [(7-CSHS)Ir(CO)2(CH3)* and [Rh(PPH3)3Cl],…
A: Calculate metal electrons in organometallic compound [η5-C5H5IrCO2CH3]+ and RhPPh33Cl Given: Atomic…
Q: Questions: A) The absorbance of a 6.17 × 10-5 M solution of the complex when measured in a 1 cm…
A: According to Beer-Lambert’s law for absorbance- A=ε.l.cwhereA-Absorbanceε-molar…
Q: alculate (a) the absorbance of a 3.40 x 10–5 M solution of the complex at 580 nm in a 1.00-cm cell.…
A:
Q: Q:Which of the following complications shows the deformity of Jan Teller? O [cr(OH2)6]3+ O…
A: A multiple choice question based on Jahn-Teller distortion, which is to be accomplished.
Q: Rank the following ions in the weak octahedral field in order of increasing Jahn-Teller effect.…
A:
Q: A 0.600 g sample of steel is dissolved in acid, and the manganese is oxidized to permanganate. The…
A: Given → Mass of the sample of steel = 0.600 g Volume of solution = 100 mL Wavelength = 520 nm Length…
Q: 580 nm, which is the wavelength of its maximum absorption the complex Fe(SCN)2+ has a molar…
A:
Q: Complexes of CO, CS, CSe, and CTe CE v(C-E), cm-1 Ru-C Distance, nm CO 1934 1.829 Me,N -CE CS 1238…
A: π-acceptor ligands are the ligands that donate their pair of electrons to metal vacant orbital…
Q: Which of the following complexes do you expect to be (the most) brightly coloured? [Zn(pic)Cl2]…
A: Complex compound which is expected to be (the most) brightly coloured can be found as follows:
Q: The formation constant for Ni(en)32+ is 4.0 x 1017, what is the value of the dissociation constant…
A: Given , Formation constant for Ni(en)32+ (Kf) = 4.0 x 1017 Dissociation constant for the complex…
Q: A 2.5 x 10 M solution of a colored complex in a 1.00 - cm cell has an absorbance of 0.300. What is…
A: Interpretation - To determine the absorptivity ( in L/mole-cm) when a 2.5 ×10-4 M solution of a…
Q: 10.3 Identify the most likely transition metal M: a. K3[M(CN)6], in which M is a first-row…
A:
Q: Calculate the pNO; for each ion in a solution that is 3.0×10³ M in Zn(NO;)2 and 750 ppm Cu(NO3)2.…
A: Given: ZnNO32=3×10-3 MCuNO32=750 ppm The atomic weight of copper is 63.5 g/mol. The atomic weight of…
Q: The spectrochemical series is I< Br¯< Cl <F< OH<H2O<NH3 < en< NO2 < CN Which of the following…
A: The complex having higher C.F.S.E. will absorb radiation of higher energy.
Q: (3) Compound with10^3 x 6.74 molar absorption What concentration of the compound is required to form…
A:
Q: Zinc (II) and the ligand L form a product that absorbs strongly at 600 nm. As long as the molar…
A: The product formed from the reaction between zinc and ligand is absorbed strongly at 600 nm. Given:…
Q: Which of the following complexes has the greatest number of unpaired electrons?
A: Correct answer = C B has zero unpaired electron
Q: 05. Experiments show that 3.5 grams of XY, can be dissolved in a liter of saturated solution. Which…
A: Answer :- (E) 137 Atomic weight of X = 137…
Q: Which one of the following complexes has a spin of S = 2? %3D A. trans-Ni(H2O)4CI2 B. [Co(CN)6]3- C.…
A: Given : Different different complexes. To find : complex that has a spin of S =2. Solution : As we…
Q: At 580 nm, the wavelength of its maximum absorption, the complex Fe(SCN)2+ has a molar absorptivity…
A: Since you have posted a question with multiple sub-parts. we will solve the first three sub-parts…
Q: 1) A Chem 102 Student prepared a cobalt coordination compound. Parts "a-c" refer to this problem. a)…
A: A numerical problem based on quantitative analysis, which is to be accomplished.
Q: Compound with 103 x 6.74 molar (3) absorption What concentration of the compound is required to form…
A:
Q: A compound having molecular weight 151.163 g/mol is determined in a sample. A 0.0302 g sample was…
A: Given: Amount of sample dissolved in aqueous solvent = 0.0302 g Molar absorptivity coefficient = 2.6…
Q: Calculate the pNO; for each ion in a solution that is 3.0×10-3 M in Zn(NO;)2 and 750 ppm Cu(N0;)2.…
A:
Q: What color would you expect to observe for a solution of Fe(ferrozine), which has a visible…
A: Compounds and solutions absorb a light of specific wavelength and emit the color complementary to…
Q: The transition metal complex ion [Ru(Bipy)3]*2 has a molar absorptivity of 1.35x10*ª M-1-cm-1 (at a…
A: According to Beer Lambert's Law, A=ε.C.l where A is the absorbance, ε is molar absorptivity, C is…
Q: Based on electron configuration, which is most likely colorless? A [Cu(NH3)4]^2+ B[Cd(NH3)4]^2+ C…
A: A multiple choice question based on coordination complexes that is to be accomplished.
Q: Calculate the concentration in ppm of cadmium in an unknown which exhibits an absorbance of 0.179.
A: Using given data a calibration curve generated in Excel by plotting Absorbance versus Concentration.…
Q: The complex formed between Cu(I) and 1,10-phenanthroline has a molar absorptivity of 7000 L mol-1…
A: The absorbance of a solution can be expressed as follows-
Q: Briefly explain how AAS can quantify the amount of lead in sample solution?
A: Atomic Absorption Spectrometry (AAS) is a technique for measuring quantities of chemical elements…
Q: At 580nm, the wavelength of its maximum absorption, a 3.75 x10^-5 M solution of the complex FeSCN2+…
A: Given information: Concentration of solution = 3.75 x10-5 M Absorbance = 0.2734 Cell length = 1.00…
Q: a) Do you expect a distortion for [Ti(H2O),]³* and [CoCl]³- b) What type of distortion would be…
A: Ans
Q: A solution containing 4000 ug Fe(III) per cubic decimeter is treated with sulfosalicylic acid to…
A: Given →Concentration of Fe(III) = 4000 ug/dm3 Length of the cell = 0.5 cm…
Q: 3. What colors does Chrome yellow absorb? 4. What is the color of a mixture of Chrome yellow and…
A: Questions: 1) Why calcium carbonate mixed with Prussian blue but not wit Chrome yellow? 2) Colors…
Q: 7. A solution containing the complex formed between Bi(III) and thiourea has a molar absorptivity of…
A: Given that: Molar absorptivity = 9.32 x 103 L.cm-1.mol-1 Concentration = 6.24 x 10-5M Length of…
Q: 1) Write the name of the Coordination Compound a. [Fe(C204)2(NCS)2]3- b. [PtBrC12(Ry)- c.…
A:
Q: Which of the following chemical elements can form [M(H2O)6]²+ complex with the spin-only magnetic…
A: Magnetic moment can be calculated by spin only formulae
Q: The molar absorptivity for the complex formed between bismuth(III) and thiourea is 9.32x103 L cm-1…
A: A question based on absorption that is to be accomplished.
Q: 16. A complex only absorbs light with energy off 2.76 x 10^-19 J. What color do we see
A: Energy of the absorbed light = 2.76 × 10-19Joule Value of Planck's constant , h = 6.625 × 10-34…
Q: A 0.2219 g sample of pure iron (MM = 55.847 g/mol) wire was dissolved in acid, reduced to the +2…
A: Given data, Mass of iron = 0.2219 g Molar mass of iron = 55.847 g/mol Volume of Cerium (IV) =…
Q: Consider the fictional transition metal 'Gc' and the complex ions formed with it: [GcI]»,…
A: Strong field ligands (SFL) cause a greater splitting of the d orbitals of the metal compared to weak…
Q: The electronic absorption spectrum of an acidic solution of [Ti(H,O),J?" exhibits two well-separated…
A: The Jahn–Teller theorem essentially states that any non-linear molecule with a spatially degenerate…
Q: The spectrochemical series is I– < Br– < Cl– < F– < OH– < H2O < NH3 < en < NO2– <…
A: The single electron present in an orbital is known as an unpaired electron. The presence of unpaired…
Q: Ligand X forms a complex with both cobalt and copper, each of which has a maximum absorbance at 510…
A:
Q: 29. A transition metal complex ion with octahedral geometry has a value of 4.4 x 10–19 J for the…
A: The relationship between wavelength and energy is -
Q: Based on your extinction coefficient, if a 0.8211 M solution of copper(II) nitrate is diluted by…
A: Absorbance is measure of capacity of a substance to absorb the light of specified wavelength .…
Q: What is the concentration of Fe(SCN)2+ in a tube a sample if the absorbance at 491.1 nm of the…
A: Absorbance is defined as the logarithm of the ratio of the intensity of the incident light to the…
Q: The wavelength of maximum absorption of the complex FESCN^(2+) has a molar absorptivity of 6.99 x…
A: Absorbance is the quantity of light absorbed by a solution. It is also known as optical density. It…
Q: The spectrochemical series is I– < Br– < Cl– < F– < OH– < H2O < NH3 < en < NO2– <…
A: The oxidation state and electronic configuration of the central atom are shown below.…
Step by step
Solved in 2 steps with 1 images
- A student measures k for a certain blue dye to be 600.4 M-¹ at 560 nm. What is the molarity of the dye in a solution with an absorbance of 0.204 at this wavelength? Ens nousior #inslo: Monia sin 8 foi 00.01 Par det id elsem. sow & netimuloa 51 (5) sonos silf et trawIm 00 001 et gauzulib imQ7) what is the pH at the equivatent point in the titration of 5 mmol Potassium acid ph thalate dissolved in 100 mel of water and titrat ed with 0.1M NaoH 9 K, = 4 +r56 %3D Ans. : 8.46A student measures k for a certain blue dye to be 600.4 M-¹ at 560 nm. What is the molarity of the dye in a solution with an absorbance of 0.204 at this wavelength? Ens notator 50 Tot 00.01 Pardet id abiem abw & neuloa siipi toimulo: Hobia nroy, at le doua insonas silt el tráveni 00 001 et gauzulib
- What is the concentration of a solution with an absorbance of 0.23 a.u. in ppm when y=45.3509yThe un-ionized form of the weak acid HA does not absorb in the visible region. When it ionizes, its conjugate base (A-) absorbs light strongly at 510 nm. The following data were obtained by measuring the absorbance at 510 nm of solutions with a concen- tration of 1.0 x 104 M HA in different pH buffers. pH Absorbance 2.0 0.00 3.0 0.00 4.0 0.00 5.0 0.025 6.0 0.180 7.0 0.480 8.0 0.570 9.0 0.595 10.0 0.595 11.0 0.595 12.0 0.595 What is the approximate pK of HA?A student measures k for a certain blue dye to be 400.4 M-1 at 560 nm. What is the molarity of the dye in a solution with an absorbance of 0.118 at this wavelength?
- Give the solutions of the following;1. Calculate the effective absorptivity and molar absoptivity for manganese is a potassium permanganate solution that contains 0.10g of manganese in 100 mL has an absorbance of 0.434 using a 1.5 cm cell at a wavelenght of 550 nm. Molar Mass: Mn=54.94Answer: Effective absorptivity= 2.89 cm-1 g-1 L ; mOLAR ABSOPTIVITY= 159 cm-1 mol-1L 2. Manganese is determined colorimentrically as permanganate by measuring the absoprtion of monochromatic green light. A standard solution in an absoption cell 5.00 cm long absorbs 10.0% of the light, while an unknown sample in a cell 1.00 cm long absorbs 50.0% of the light. The standard solution contains 2.00 mg of Mn per liter. What is the concentration (g/L) of the Mn in the unknown? Ans= 0.0657 g/L3. The drug tolbutamine (mm=270) has a molar absorptivity of 703 AT 262 nm. One tablet is dissolved in water and diluted to a volume of 2L. If the solution exhibits an absorbance in the UV region at 262 nm equal to 0.678…The molar absorptivity of KMNO, at 525 nm is 2.2-x 10° L mol"-cm'. What is the concentration of a solution made from KMNO4 that has an absorbance of 0.58 with a cell path length of 0.50 cm? A. 2.2 x 10' mol/L B. 1.3'x 10° mol/L C. 5.3-x 10“ mol/L D. 1.1-x 10° mol/L E. 2.3-x 10* mol/LThe molar absorptivity constant of a particular chemical is 2.31 M/cm. Determine the concentration of a solution made from this chemical that has an absorbance of 0.408 with a cell path length of 1.12 cm.
- A 20 ml aliquot of drinking water containing Fe(II) and Fe (III) is treated with hydroquinone to reduce all dissolved iron to Fe(II),0- phenanthroline is added and the aliquot is diluted to 50 ml and the absorbance in a 2.00 cm cell is 0.085 at 510 nm. Calculate the iron content of the water as ppm? ε = 1.11 x104 L/mol cmCHOCIS Small! X= 5.92×10-5 = [ht] plt 9) Calculate the pH of a solution that contains 1.00 MHCN (K. = 6.2 x 10-¹0) and 5.00 M HNO₂ (K₁ = 4.0 x 10). Also calculate the concentration of cyanide ion (CN) in this solution at equilibrium. ignore the HCN - the concentraction is low & Ka + is 50 Solve using a standard ICE table for tril, onlyIlow many grams of an ointment base must be added to 45 g of clobetasol (TEMOVAT E) ointment, 0.05% w/w, to change its strength to 0.03% w/w?