1. A compound has a molar absorptivity of 3.031 x 103 L cm-1 mol1. If a 15.00 mm-length cell is used to hold the sample, and a transmittance of 19.53 % is measured, what is the molarity of the compound in solution?

Q: As the cell thickness increases, the intensity of the transmitted light also increases. Is this True…

A: Ans -      This statement is false. Explain -       As the cell thickness increases, the intensity…

Q: 6. A solution containing 5.75 mg/100 mL of X (335 g/mol) has a transmittance of 41.6% in a 2.0 cm…

A:

Q: 5 a) A cell of 10 mm path length contains ferric chloride solution of 0.002M. An electromagnetic…

A: Absorbance = 0.60 Concentration = 0.002 M Path length = 10 mm 1 mm = 0.1 cm 10 mm = 1 cm Now,…

Q: 1. A 10.0 mL sample of a diluted solution has a transmittance of 25.1%. Determine the connection of…

A: The question is related to absorbance based on beer lambert's lawA= ε c L; c=concentration; L=…

Q: (a) Describe the difference between the following and list any particular advantages possessed by…

A: Hello. Since the question contains multiple subparts the first three subparts are solved. In case…

Q: 3. A solution containing 4.48 ppm KMNO4 has a transmittance of 0.576 in a 1.00 cm cell at 52 nm. If…

A: The following problem can be solved using the Beer Lambert Law: A = ECL where A = Absorbance C =…

Q: A solution containing 5.75 mg/100 mL of X (335 g/mol) has a transmittance of 41.6% in a 2.0 cm cell…

A: Given,  A solution containing 5.75 mg/100 mL of X (335 g/mol) has a transmittance of 41.6% in a 2.0…

Q: Does the amount of radiation (cpm) increase or decrease as the thickness of the shielding increases…

A: Given information,    The distance between the source and the sensor stays the same

Q: 4. A solution has 21.7% transmittance in a cell with a path length of 1.00 cm. If the material…

A:

Q: The transmittance of a solution in 1-cm cuvette is 60.0%. Calculate the transmittance of the same…

A:

Q: A solution containing 4.48 ppm KMnO, had a % transmittance of 30.9% in a 1.00 cm cell at 520 nm.…

A: Given data contains, Concentration in ppm is 4.48 ppm. Pathlength is 1.00 cm . Transmittance is…

Q: 4. A solution has 23.6% transmittance in a cell with a path length of 1.00 cm. If the material…

A: According to Beer-Lambert law,  A = ε c l  Where,  A = Absorbance  ε = molar absorptivity  c =…

Q: Please can you solve this question in chemistry quickly

A:

Q: It was decided to analyze a waste solution that contains an unknown concentration of Mn²* ions using…

A: Given: Volume of original sample = 6.40 mL  Volume of final solution = 250.0 mL. Percentage…

Q: A student prepared a series of starch standards using the iodine method and measured the absorbance…

A: In optics, absorbance or decadic absorbance is defined by the common logarithm of the ratio of…

Q: 5 a) A cell of 10 mm path length contains ferric chloride solution of 0.002M. An electromagnetic…

A: Since these are subquestion, each question is not related to each other. Therefore in multiple…

Q: The table shows a series of standard additions of Cu(II)to acidified tap water samples measured by…

A: The solution of the question is given below:

Q: 5. The transmittance of a solution is found to be 85.0% when measured in a cell whose path length is…

A:

Q: A 7.21 x 10−5 M solution of potassium permanganate has a transmittance of 52.1% when measured in a…

A: Transmittance (T) is defined as the ratio of intensity of transmitted light (I) to the intensity of…

Q: A photometer with a linear response to radiation gave a reading of 690 mV with a blank in the light…

A: %Transmittance can be calculated as: %T=PP0×100=VV0×100                            =169 mV690 mV×100…

Q: A inorganic compound whose concentrations is 0.013 M in a 1 cm path length cell has transmittance of…

A: When incident light goes through a substance, absorbance measures how much of it is absorbed, while…

Q: 79 11 58 73 32 6,63 1.06 6.68 90 03 82 .B7 60 65 60 65 Transmittance [%] 80 85 70 75 下 70 75 80 85…

A: spectroscopic analysis

Q: A 4.48 mg sample of a compound has a molar mass of 158.03 g/mol was dissolved in a 1000 mL…

A: Mass of compound, wB = 4.48 mg Molar mass, MB = 158.03 g/mol Volume of solution, V = 1000 mL…

Q: Q4 :[a] 5.00 x 10 M solution of an analyte is placed in a sample cell that has a path length of 1.00…

A: Given: The concentration (c) of the solution is 5.00 x 10-4 M The path length (b) is 1.00 cm The…

Q: 20) An x-ray machine operating at 80 kVp for 100 mAs with 1 mm Al added filtration produces an…

A: It is given that the X-ray mechine operating at 80 kVp for 100 mAs with 1 mm Al added filtration.…

Q: A 0.28g steel sample containing an unknown % of Mn is dissolved and digested. The solution is tested…

A: Answer:- This question is answered by using the simple concept of calculation concentration using…

Q: The molar absorptivity for aqueous solutions of phenol at 211 nm is 6.17 x 10³ L cm³¹ mol¹. What is…

A: Given,  Molar absorptivity for aqueous solution of phenol = ε = 6.17 x 103 L.cm-1.mol-1  Percentage…

Q: A solution containing 6.94x10^-8 M CrQ3 (Q=8 hydroxyquinolate ion) has a percent transmittance of…

A: The amount of light absorbed by a solution is named as absorbance (A) of the solution. The amount of…

Q: The transmittance of a solution in 1-cm cuvette is 50.0%. Calculate the transmittance of the same…

A:

Q: List the desirable characteristics of HPLC detectors.

A:

Q: The transmittance of a solution measured at 590 nm in a 1.5-cm cuvette was 76.2%. (a) What is the…

A: We have to predict the absorbance, absorptivity and the concentration.

Q: Does the amount of radiation (cpm) increase or decrease as the thickness of the shielding increases…

A: The amount of radiation (cpm) increase or decrease has to be predicted

Q: What are the atomic cross section and atomic energy absorption cross sections for a 0.5-Me gamma ray…

A:

Q: A 2.50*10–4M solution of a dye has an absorbance of 0.860 when measured in a 1.00 cm cell at 625 nm.…

A: The relationship between transmittance T and Absorbance A is       A = - log(T) => T = 10-A…

Q: The transmittance of a solution is found to be 85.0% when measured in a cell whose path length is…

A: Given-> T% = 85.0 %.      When l=1.00 cm T% = ?                  When l= 10.00 cm

Q: 33. What is the concentration of an analyte given that the percent transmittance is 70.3%, the path-…

A: Answer: According to Beer-Lambert law A=εbC Here: A=absorbanceb=path lengthC=concentrationε=molar…

Q: * The data in the table below were obtained during a photometric determination of glucose in blood…

A: Absorbance is defined as the how much light is absorbed by sample. And transmittance is defined as…

Q: A 20 ppm solution of a DNA molecule (unknown molecular weight) isolated from Escherichia coli was…

A: The question is based on Beer's law equation. The formula for the Beer's law is as follows:

Q: The transmission of a potassium chromate solution was measured at a wavelength of 365 nm using a…

A: The absorbance calculated in base e is known as the molar Naperian absorbance. It is given as…

Q: 13) To determine the number of moles of Cu in the sample, the students measured the absorbance of…

A: Which of the possible error that the student made it is to be determined based on the provided data.…

Q: calculate the concentration of the unknown KMnO4 solution in ppm

A:

Q: The standard calibration curve for absorbance vs. [Cu"] yielded a straight line with an equation y =…

A: Atomic absorption spectroscopy is used to determine the concentration of unknown samples using a…

Q: 4. The transmittance of a solution is found to be 35.0%. What is the transmittance if the solution…

A: Given-> Transmittance (T%) = 35.0 %. When C1= C

Q: The molar absorptivity for aqueous solutions of phenol at 211 nm is 6.17 × 103 L cm-1 mol-1.…

A: Given data: The molar absorptivity ɛ=6.17×103 L.cm-1mol-1. The transmittance range T=less than 85%…

Q: Calculate the expected absorbance value of a 0.39 M aqueous solution of a solution if the extinction…

A:

Q: In determining the amount of copper and the identity of the copper compound in the unknown sample, a…

A:

Q: To determine the molar concentration of a metal ion in a solution of unknown concentration, a…

A: The graphical equation given is : y = 5.747 x + 0.013 absorbance of the final diluted solution =…

Q: 10. The concentration of haemoglobin in a blood sample was determined by spectrophotometry. A…

A: Given Absorbance concentration 0.069 1 0.113 2 0.201 4 0.377 8 0.730 16

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.