A solution contains 3.0 mg of Fe?*/ liter. The Fe2* is converted into a complex with 1,10-phenan- throline and the absorbance of the solution in a 1.0-cm cell is 0.60. The MW of the complex is 596. Calculate (a) the absorptivity, (b) the molar absorptivity of the complex.

A solution contains 3.0 mg of Fe?/ liter. The Fe2 is converted into a complex with 1,10-phenan- throline and the absorbance of the solution in a 1.0-cm cell is 0.60. The MW of the complex is 596. Calculate (a) the absorptivity, (b) the molar absorptivity of the complex.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.20QAP

See similar textbooks

Related questions

Q: Identify which of following alkyl halides undergoes solvolysis most rapidly. Br II Br II Br

A: We are given three alkyl halides and asked which alkyl halide undergo solvolysis faster.

Q: "hich one of the following statements is true? O a. The conjugate base of a strong acid is very weak...

A: Answer Which of the following statements is true Strongest acid has...

Q: Mechanism 3. When heated the cyclobutene below coverts to a mixture of products A and B. The ftirst ...

A: Cyclobutene system is very unstable system as small ring containing double bond .Thus it faces huge ...

Q: After performing precipitation gravimetry, Asta placed the weighing form inside the crucible, heated...

A: The average of these masses is : 23.1136 + 23.2125 + 23.4120 + 23.11394 = 23.2130

Q: A buffered solution was prepared by dissolving 6.85g of sodium formate (NaHCOO in 250.0mL (16) of a ...

Q: Ammonia, an important source of fixed nitrogen that can be metabolized by plants, is produced using ...

A: Recall the Haber's process in which nitrogen and hydrogen are combined - ...

Q: I have problems understanding the results of this experiment, could you help me by explaining the re...

A: Lambda Max is a wavelength at which absorbance of solution is maximum comparing with absorbance at o...

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of ...

A: Decomposition reaction is a reaction in which a single reactant decomposes to form two or more produ...

Q: Carbon -14 has a half-life of 5.730 x 10 3 years. If the original mass of the parent is 501.695 g, ...

Q: The normal freezing point of a certain liquid X is 5.20 °C, but when 41. g of urea (CH,N,O) are diss...

A: Given, mass of urea (CH4N2O) dissolved = 41.0 g Mass of liquid X = 750 g = 0.750 Kg Freezing point o...

Q: Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate ...

Q: Dr. Albert Apale, a well known Chemist, tested Random samples in the laboratory. The compounds were ...

A: Compounds are classified as : Ionic Saturated with 6 carbon molecules Unsaturated with 6 carbon mo...

Q: When N2(g) reacts with O2(g) according to the following reaction, 82.1 kJ of energy are absorbed for...

A: Nitrogen reacts with oxygen to form dinitrogen oxide. The equation for the balanced chemical reactio...

Q: Identify which of following alkyl halides is most likely to undergo rearrangement during a solvolysi...

Q: Calculate the pH at the equivalence point when 15.0 mL of a 0.30M hydrochloric acid solution is titr...

Q: 6.A fuel is burned with 50% excess air and the combustion characteristics of the fuel oil are simila...

Q: Combustion of hydrocarbons such as pentane (C,H12) produces carbon dioxide, a "greenhouse gas." Gree...

Q: Suppose a 250. mL flask is filled with 0.80 mol of SO, and 1.5 mol of SO3. This reaction becomes pos...

A: The balanced equation is 2 SO2 (g) + O2 (g) <---------> 2 SO3 (g)Volume = 250 mL = 0.250 L I...

Q: kJ and its normal boiling point is 99. °C. Calculate the vapor pressure of X at mol The enthalpy of ...

Q: Which among these objects should you use to filter the precipitate in precipitation gravimetry? D...

A: Please find your solution below : Gravimetry is a method of quantitative determination of analyte on...

Q: NaH H,SO4 (A) -OH (G) + ethyl chloride -OH (H) 180° K,Cr,0,, H,SO, (B) OH (1) + (J) •Product Set 1 (...

Q: 3) A solution has a pOH of 3.62. a. Is the solution an acid or a base?. Part b below first.) (If you...

A: As part of our community guidelines, we can answer only the first three sub-parts of the given quest...

Q: Determine the Miller Index of the blue plane in the HCP crystal

Q: Which of the following structural formulas represent identical compounds and which represent constit...

A: Answer: Compounds those have similar molecular formulas but different structural formulas are called...

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater...

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL heigh...

Q: Calculate A S0 for the reaction below at 25 C. s for SiH 4- 204.5 J/mol K, for O 2(g) - 205.0 J/mol ...

Q: Chromate-dichromate system 1. Prepare a clean spot plate and label four wells. Place 5 drops of 0. 1...

A: To complete the table with observations:

Q: Match the following electron configurations to the correct atoms or ions. v 1s22s22p6 v 1s22s22p63s²...

Q: Briefly discuss the following: Different types of membrane indicator electrode How a pH ...

A: 1. Answer - Ion-selective electrodes are membrane indicator electrodes that produce an electrical p...

Q: Pure iron has a change in crystal structure from BCC to FCC when heating up above 2. a) 912°C. If th...

Q: Question 15

A: The tertiary substrate favours an sN1/E1 mechanism.

Q: A system is compressed from 250 L to 5.0 L at a constant pressure of 10.0 atm. What is the amount of...

A: Consider the given information is as follows; Initial volume V1 = 250 LFinal volume V2 = 5.0 LPressu...

Q: nsider the following reaction at equilibrium. 2002 (g) → 200 (g) + O2 (g) , AH° = -514 kJ Châtelier'...

A: Given- 2CO2<->2CO+O2. ∆H=-514KJ

Q: Differentiate chiral from achiral.

Q: 4. Producer gas from bituminous coal (see table below) is burned with 20% excess air. Calculate the ...

Q: The boiling point of 500.0L of water was determined to be 100.0°C. Ana has decided to increase the b...

A: To solve this question, use formula which contain change in temperature, Kb in it and solve for mass...

Q: in the determination of Keq in spectrophotometry, why is it that [KSCN] is lower in the preparation ...

A: The equilibrium between Fe3+ and SCN- given as: Fe3+(...

Q: If there are 35g Oxygen in a pure sample of Silicon Dioxide (SiO3), how many grams of Silicon are pr...

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as...

Q: Relating Density to Crystal Structure 1. Show that the atomic packing factor for FCC is 0.74. 2. Sho...

Q: Question 10 Which one of the following statements does not describe the equilibrium state? O Equilib...

A: 1) equilibrium is dynamic and both forward and reverse reactions never stop.

Q: A student prepares a stock solution of BaF2 by dissolving 50.00 g of a BaF2 in 1.00 L of water. An a...

Q: to 11

Q: A 13.8 mL solution of 0.100 mol L-1 HCl is titrated using 0.150 mol L-1 NaOH. What is the pH of the...

A: An acid is a substance that can enhance the concentration of hydrogen ions pertains to a solution to...

Q: 4. Calculate potentials after the addition of 10.00, 25.00, 50.00, and 50.10 mL of the reagent. Wher...

A: "Since you have asked multiple questions, we will solve the first question (4a) for you. If you want...

Q: Show that the atomic packing factor for FCC is 0.74.

A: We have to show that the atomic packing fraction of FCC is 0.74.

Q: For which one of the following reactions is the value of Kp equal to Kc? O a. 3 02(g) = 2 03(g) O b....

Q: 1. I have problems understanding the results of this experiment, could you help me by explaining the...

A: In order to obtain the result of the experiment, we have to find the most suitable wavelength to mea...

Q: Which of the following bonds is the most polar bond? A) C –C B) C –O C) C –H D) C –Cl E) C –N Which...

A: Given:- Which of the following bonds is the most polar bond?A) C –C B) C –O C) C –H D) C –Cl E) ...

Q: Complete the following chemical equation below. Provide the reagent that will separate each pair of ...

A: A) Zn +2 and Ba+2 will be separated by so4 -2 ions. B) Al+3 and C +3 will be separated by the heat...

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 281.0 mg sample...

Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

A solution contains 3.0 mg of Fe**/ liter. The Fe* is converted into a complex with 1,10-phenan-
throline and the absorbance of the solution in a 1.0-cm cell is 0.60. The MW of the complex is
596. Calculate (a) the absorptivity, (b) the molar absorptivity of the complex.

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

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

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

A 20 ml aliquot of malonic acid solution was treated with 10.0 ml of 0.25M Ce4+ leading to the reaction CH2(COOH)2 + 6Ce4+ + 2H2O ® HCOOH + 2CO2 + 6Ce3+ + 6H+ After standing for 10 minutes at 60oC, the solution was cooled and the x’ss Ce4+ was titrated with 0.1M Fe2+, requiring 14.4 ml to reach the ferroin end point. Calculate the M of the malonic in the sample.
The absorbance of a solution containing 5.0 x 10^-3 g/L of a solute in a 1.00 m cell is 1.00. Calculate the absorptivity and the molar absorptivity if the molecular mass of the solute is 1.25.
The amount of iron in a meteorite was determined by a redox titration using KMnO4 as the titrant. A 0.4185 -g sample was dissolved in acid and the liberated Fe3+ quantitatively reduced to Fe2+, using a reductor column. Titrating with 0.0044 M KMnO4 requires 28.76 mL to reach the end point. Determine the %w/w Fe2O3 in the sample of meteorite. (Fe = 55.845 amu, Fe2O3 = 159.69 g/mol
6mL of 125mM EDTA was added to 244mL of water. The resulting solution was added to 219mL of water and the pH was adjusted to 8.0 using 6mL of NaOH. A further 25mL of water was added. What is the concentration of the final solution (in micromolar)? MW of EDTA is 292.24, MW of NaOH is 39.99
Is this for Average Molarity of EDTA Standard Solution? Then, would it be always the same with average Molarity of EDTA? How about the Ca Titer (mg Ca/mL of EDTA Solution? Show step by step solution.
The Cl– content of a solution was analyzed via an EDTA titration. 2.00 g of AgNO3 was added to 25.00 mL of the sample solution. A titration with 0.096 53 M EDTA was then carried out, reaching an endpoint at 38.25 mL. What’s the concentration of Cl – (M)?
Compare the two quantities based on the given condition. Titration of the same sample solution of MgCl2 I. Volume at EP with 0.10 M EDTA as titrant II. Volume at EP with 0.10 M AgNO3 as titrant Are they equal? Or which one is greater? Or can it be determined?
The amount of iron in a meteorite is determined by a redox titration using KMnO4 as the titrant. A 2.1800 g sample is dissolved in acid and the liberated Fe3+ quantitatively reduced to Fe2+ using a Walden reductor. Titrating with 0.02500 M KMnO4 requires 22.0 mL to reach the end point. Determine the %w/w Fe2O3 in the sample of meteorite.
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 x 104 L/mol cm
The concentration of Cl– in a 300.0-mL sample of water drawn from a fresh water acquifer suffering from encroachment of sea water, was determined by titrating with 0.0516 M Hg(NO3)2. The sample was acidified and titrated to the diphenylcarbazone end point, requiring 6.18 mL of the titrant. Report the concentration of Cl–in parts per million
For complexometric titration of Ca (II) ions in the shell of an egg sample weighing 59,427 g, the necessary processes were applied to the egg shells and a sample of 100 mL was prepared. From the prepared sample, 1 mL was taken and diluted to 100 mL, the pH was adjusted, and two drops of EBT indicator were dripped on it. The prepared solution was titrated with 27.4 mL of EDTA solution set at 0.0097 M. Calculate the amount of calcium in the sample in CaCO3%. (Ca = 40g / mol, CaCO3= 100g / mol)
When I was a boy, I watched Uncle Wilbur measure the iron content of runoff from his banana ranch. He acidified a 25.0-mL sample with HNO3 and treated it with excess KSCN to form a red complex. (KSCN itself is colorless.) He then diluted the solution to 100.0 mL and put it in a variablepathlength cell. For comparison, he treated a 10.0-mL reference sample of 6.80X 1024 M Fe31 with HNO3 and KSCN and diluted it to 50.0 mL. The reference was placed in a cell with a 1.00-cm pathlength. Runoff had the same absorbance as the reference when the pathlength of the runoff cell was 2.48 cm. What was the concentration of iron in Uncle Wilbur’s runoff ?