A solution of KMnO4 with a concentration of 8.25 x 10-5 M yields an absorbance value of 0.1302 when measured in a 5.60 cm cuvette, set at a wavelength of 725 nm. Compute for the Molar Absorptivity Coefficient of the sample. Choices: a. 2.8182x10-8 c. 4.8182x10-8 b. 3.8182x10-8 d. 5.8182x10-8

A solution of KMnO4 with a concentration of 8.25 x 10-5 M yields an absorbance value of 0.1302 when measured in a 5.60 cm cuvette, set at a wavelength of 725 nm. Compute for the Molar Absorptivity Coefficient of the sample. Choices: a. 2.8182x10-8 c. 4.8182x10-8 b. 3.8182x10-8 d. 5.8182x10-8

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter24: Introduction To Spectrochemical Methods

Section: Chapter Questions

Problem 24.2QAP

See similar textbooks

Related questions

Q: 4. CH3 CH2 -NH- CH2 CHy 5. CHg CH2 CH2 CH2-Ċ-OH

Q: Determine whether the following complexes are likely paramagnetic or diamagnetic. A. [Fe(CO)6]2+ B.…

Q: Which one of the following is the strongest acid? O A. HF (Ka = 6.8 × 10^-4) O B. HCIO (Ka = 3.0 ×…

A: Which one of the following is strongest acid ?

Q: 5. Calculate for the heat released by complete combustion of hexane, CsH:40, at STP if 23.633g of…

A: Given reaction is : C6H14 (l) + 192 O2 (g) ----------> 6CO2 (g) + 7H2O (l) , ΔH = -4163 KJ…

Q: Draw 3 molecules of CH3CH2OH (ethyl alcohol) using Lewis Structure/Kekule Formula. Identify the…

A: Given, Draw 3 molecules of CH3CH2OH (ethyl alcohol) using Lewis Structure/Kekule Formula. Identify…

Q: Design a solution stoichiometry problem that involves a limiting reagent and percent yield. Include…

A: The basic reaction between NaOH and HCl is- NaOH + HCl gives NaCl + H2O So, 1 mol NaOH reacts…

Q: 11. Which statement properly describes the differences between a real gas and an ideal gas? The…

A: In this question, we have to choose the statement which describes the differences between a real gas…

Q: Fill in the units for the apparent rate constant for each reaction order given below. L/mol-s…

Q: 4.b A buffer contains the weak acid HAHA and its conjugate base A−A−. The weak acid has a pKapKa of…

A: If you add base to a buffer, the ph must increase slightly If you add acid to a buffer, the ph must…

Q: What is the solubility of La(IO₃)₃ in a solution that contains 0.100 M IO₃⁻ ions? (Ksp of La(IO₃)₃…

Q: Which of the following acids or bases will have the lowest pOH? Select one: OA 0.10 M H2SO4 (pKa,…

Q: Volume (mL) of 0.01 M NaOH usęd to reach the endpoint Concentration (M) of salicylic acid solution

A: Using equation : M1×V1 = M2×V2 -------(1) Where, M1 is concentration of unknown acid, V1 is…

Q: How many gallons of octane, C3H18, having a density of 0.703 g/cm°, would have to be burned to…

A: Interpretation- How many gallons of octane , C8H8 having a density of 0.703g/cm3 , would have to…

Q: 22. When heated, the decomposition of mercury (II) oxide will produce oxygen gas. 2 Hg0 (s) → 2 Hg…

A: It is an example of thermochemistry Here we are required to find the volume of oxygen gas produced…

Q: Classify the following nuclear reactions by the type of nuclear decay represented. Alpha Decay 1{Na…

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: What is true about the heated solution upon cooling? * a. The undissolved solutes start to settle…

A: Heating followed by cooling results into many observable changes into the solution.

Q: Rank the bond lengths in the following molecule from shortest to longest. 5 H 3 2 1 H Shortest 1< 2<…

A: The increasing order of bond length in the given molecule is:

Q: A chemist prepares a solution of silver nitrate (AGNO,) by measuring out 231. g of silver nitrate…

Q: Slaked lime (Ca(OH)2) is produced when lime (calcium oxide, CaOs) reacts with liquid water. 65.2kJ…

Q: The equilibrium constant, Kc, for the following reaction is 4.91×10-3 at 678 K. NH4I(s) NH3(g) +…

A: Kc is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: s: 4s! Ba104p! 28 3 outer electrons: Incorrect Incorrect 3 s: Incorrect 4f\45d*

A: Electronic configuration is the distribution of electrons in various orbitals. A) Inner electrons…

Q: Butan-1-ol can be oxidised by acidified potassium dichromate( VI) using two different methods. (a)…

A: Here we have to write the products of oxidation of butan-1-ol by k2cr2o7/H+ and to distinguish…

Q: An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a.…

Q: Consider the following data for arsenic: 74.922 mol atomic mass electronegativity 2.18 kJ 78. mol…

A: Here we are required to find the energy released or absorbed for the given reaction for arsenic

Q: 88.906 mol atomic mass electronegativity 1.22 kJ 29.6 mol electron affinity kJ 600. mol ionization…

A: First we would check the type of reaction. Then use the given data to find the correct value of…

Q: Provide the correct sequence of reactions needed form the epoxide starting from ethyne. from H =-H +…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. CI 1. (CH3)2CULI (excess) 2.…

Q: Does the NMR match the following product? explain and match each peak with corresponding carbon. I…

A: To assign the peak to each of the hydrogen present in the given compound.

Q: Provide a short answer for why the alkyne is recovered versus an SN2 reaction in the transformation…

Q: the फोष्ज द ताटकर्ववलोठला वकतव वोष्ट जमिe Stactore off the majouT product fourmed when…

A: Note : The nucleophile approaches the carbonyl from the bottom face.

Q: What is the binding energy in kJ/mol N for nitrogen-14? kJ/mol 7H+ 7,n'GN The required masses…

Q: 2NH, (g) + 20,(g) - N,0(g) + 3H,0(g) the initial mixture contains 8.50 mol NH3 and 7.25 mol O2. At…

Q: What is the pH of the initial 30.0 mL strong acid analyte HZ sample if upon titrated with 15.0 mL…

Q: A C5H3 alkyne is reacted with Lindlar's catalyst and hydrogen gas to yield product with the…

A: Molecular formula of alkyne = C5H8 Alkyne on reaction with lindlars catalyst gives cis alkene

Q: Classify the following nuclear reactions by the type of nuclear decay represented.

A: Alpha decay is a process where the parent nucleus emits an alpha particle and thereby decays to a…

Q: Which of the following indicators will be the most appropriate to be used for the titration of 25.0…

A: When we titrate 25.0 mL 1.0 M Na2CO3, with 1.0 M HCI titrant, up to first equivalence point CO32-…

Q: Why is the isotope 1Ci radioactive while 35Cl and 37Cl are not? Elements with an number of protons…

A: 36Cl is radioactive and unstable because it has odd no. of protons and neutrons whereas other two…

Q: ebra + HBr 3. Chg-C - oH + HO-CHy → CHy- Ö-0-CHy + HOH 吉

A: Hydrogcarbons are compound which are formed from carbon and hydrogen only.

Q: F3NH4* Ct. lat Hz-C-CH2-C00. a* F3-C-CH2-CO0. H;NH Ch. a* Clo,

A: As we know, Acids and acidic salts have pH less than 7. Bases and basic salts have pH greater than…

Q: This problem is about the name for the following molecule. Br O IRE-2-bromo-4-fluorohex-3-ene O…

A: ->For the naming of compound in IUPAC system the following steps are required- Identify the…

Q: Using a skeletal structure, give the structure corresponding to the name (s)-3-iodo-2-methylnonane.

A: Note : write parent chain first. Then substituents to parent chain and wedge/dash line to…

Q: When 22.0 mL of a 6.90×10-4 M magnesium sulfate solution is combined with 15.0 mL of a 3.89×10-4 M…

Q: When aqueous solutions of sodium chloride and silver nitrate are mixed, AgCl(s) is formed. When 1M…

A: Sodium chloride ( NaCl ) reacts with silver nitrate ( AgNO3 ) to produce Silver chloride ( AgCl )…

Q: A sample of air is determined to have an NO2 concentration of 75.7 µg/m³. What is this concentration…

Q: Consider the following equilibrium: 2NOCI (e) -– 2NO (2) ► CI, (e) AG-41. Now suppose a reaction…

A: Answer: This question is based on the basic understanding of system of gases that is not at…

Q: 2. The Nobel Prize in chemistry for 2,000 was nominated by Heeger. Macdiarmid and Shirikawa with…

Q: Charcoal is primarily carbon. What mass of CO2CO2 is produced if you burn enough carbon (in the form…

Q: 1. ASSERTION: The solubility of gases in water follows the order O2 < N2 < SO2 < CO2 < NH3. REASON:…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: In the preparation of benzil, if the reaction conditions are too basic then a secondary reaction may…

A: Given is the secondary reaction of benzil to benzilic acid.

Q: Human blood must have a pH between 7.35 and 7.45 - any deviation from this value causes serious…

A: Given range: 7.35-7.45 Fatal pH = 7.8

Concept explainers

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.

Question

A solution of KMnO₄ with a concentration of 8.25 x 10^-5 M yields an absorbance value of 0.1302 when measured in a 5.60 cm cuvette, set at a wavelength of 725 nm. Compute for the Molar Absorptivity Coefficient of the sample.

Choices:

a. 2.8182x10^-8 c. 4.8182x10^-8

b. 3.8182x10^-8 d. 5.8182x10^-8

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 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

From the data in Problem 26-14, calculate for species C and D) (a) the resolution. (b) the length of column necessary to separate the two species with a resolution of 2.5.
Derive an expression relating absorbance to the concentrations of standard and unknown ( c subscript s and c subscript x) and the volumes of the standards and unknown ( V subscript s and V subscript x ) as well as the volume to which the solutions were diluted (V subscript t). Derive expressions for the slope and the intercept of the straight line obtained in (a) in terms of the variables listed above.
A green solution containing Ni+2 ions absorbs 580 nm light. Undiluted, a sample of this solution sampled in a 1.00 cm diameter cuvette has an absorbance of 0.9765 a.u.. If the molar absorptivity coefficient for Ni+2 is 6.3 x 104 M -1 cm -1 at 580 nm, how much of the original stock Ni+2 solution (in mL) needs to be added to water to create a total dilute solution volume of 10.00 mL that measures an absorbance of 0.146 a.u. at 580 nm? Report your answer to 3 significant figures. Do not include the "mL' unit label in your response
A water sample has been analyzed for phosphate using UVVS method at 662 nm wavelength. The molar absorptivity of the standard phosphate gives a value of 1.03 x 103 L/mol.cm and an average absorbance reading of 0.431 for the water sample. Is the water from where the sample is taken safe for human drinking?
i) The transmittance of as solution measured at 590nm in a 1.5cm cuvette was 76.2%. ii) Calculate absorbance of above solution? iii) If the concentration is 0.0802 M, what is the molar absorptivity of this solution at given wave length? iv) If the molar absorptivity is 10000L/ (mol.cm), what is the concentration?
A standard 3 mL cuvette is two-thirds filled with a 1 in 5 dilution of 70 mM oxyhaemoglobin. The absorbance is measured at 580nm. A few drops of a live yeast suspension is added to the cuvette (without significantly changing the volume). The absorbance is remeasured at the same wavelength as above and is found to be 0.40, a decrease of 0.2 on the first measurement. What is the molar absorbance coefficient of the oxyhaemoglobin at 580 nm? (do not enter the units in the answer, 2 decimal places)