What are the atomic cross section and atomic energy absorption cross sections for a 0.5-Me gamma ray in copper?

Q: I have to use beers law

A: Absorbance is calculated as follows,

Q: A 0.1110 g rock sample containing an unknown amount of Ca was dissolved in HCl and diluted to 100.0…

A:

Q: In which region of the electromagnetic spectrum does an

A: Electromagnetic spectrum :  It is a range of frequencies of electromagentic radiation and their…

Q: An ionization chamber was exposed to gamma rays, and 3.8 x 1012 ion pairs were produced per gram of…

A:

Q: What is single-crystal X-ray analysis ?

A: Using technique of single-crystal X-ray analysis .

Q: (A) Suppose a solution contains 0.01 M Fe, has a transmittance of 60 % in a 1 cm cell at 625 nm, The…

A: Absorbance = 2 - log(%T) Also, Absorbance = Molar absorbtivity coefficient × Concentration × Path…

Q: Which of the following will give a negative deviation to Beers Law? I. polychromatic radiation II.…

A: Polychromatic radiation is the radiation which consists of different wavelengths which results in…

Q: The part of SEM that is responsible for the production of electrons. * Electron guns Condenser lens…

A: SEM ,TEM ,XPS are the analytical techniques used for surface analysis of samples.

Q: Blue dye can be decolorized by treatment with bleach. The kinetics of the reaction can be studied by…

A:

Q: Frequency of 486 nm wavelength

A:

Q: The quantum yield of light-induced chemical reactions (called photochemical reactions) measures the…

A: Interpretation - The maximum amount (in moles) of CH3X that breaks apart is to be explained.…

Q: The mass absorbtion coefficient for Ni measured with Cu kalpha lines is 49.2 cm2 /g Calculate the…

A: Density, ρ = 8.90 g/cm2 Mass absorption coefficient, μm = 49.2 cm2/g Transmittance Power = 47.8 % of…

Q: If electrons are ejected from a given metal when irradiated with a 10-W red laserpointer, what will…

A: The photoelectric effect is a phenomenon in which the electrons are ejected from the surface of the…

Q: A sample of a colored analyte at a concentration of 3.60 ´ 10-3 mol/L shows 34.2 percent…

A: #(a): Given the concentration of the analyte, C = 3.60*10-3 mol/L or M %T = 34.2 %

Q: The equation for the calibration curve prepared with a series of standard Na + solutions (1-5 mg /…

A: The calibration graph would something.. look like this..

Q: 1. Write a report comparing the principles, limitations/capabilities of the following microscopic…

A: a) Optical Microscopy : It is also referred to as light microscope. It is used in material science…

Q: Read the excerpts from chemistry journal articles. Determine which section each quote was likely…

A: The first one is the EXPERIMENTAL. It refers to the details of the experiment.

Q: What is the energy of X-ray radiation that has a wavelength of 1.00×10-11 m?

A:

Q: 7. All the following is an example of photon detectors EXCEPT: Vacuum phototube O Silicon…

A: Photon detector devices are mainly Vaccum phototube, Silicon photodiodes and Photomultiplier tubes.…

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: Quality assurance. Tin can be leached (dissolved) into canned foods from the tin-plated steel can.…

A: Ionization: Splitting or dissociation of molecule into charged species is ionization. Charges…

Q: The drug Librium gives a polarographic wave with E1/2 5 20.265 V (versus S.C.E.) in 0.05 M H2SO4. A…

A: Here , E1/2 =-0.265 V in 0.05M H2SO4 Also it is given that , Wave height was 0.37 uA when it…

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

A:

Q: The nickel level in a soil sample was determined using AAS. A 3.0 g sample was dissolved in acid and…

A: Given: The calibration curve equation is y = 0.0699x + 0.015  Absorbance of the sample = 0.3 Volume…

Q: A phamacy student is asked to determine the content of potassium in KCl tablets by flame photometry.…

A: The intensity of diluted sample = 70. Determination of the concentration of the diluted sample:…

Q: Technetium emits a y-ray with an energy of 0.141 MeV. (1 MeV = 10° electron-volts and 1 eV = 1.6022…

A: GivenEnergy of γ-ray = 0.141 MeV1 MeV = 106 eVEnergy of γ-ray = 0.141 * 106 eV1 eV = 1.6022 * 10-19…

Q: wavelengths. 요 λ = 219 nm

A:

Q: What is the frequency (in Hz) of low-level radiation from a fluorescent lamp with wavelength at 254…

A: Given, wavelength of radiation = 254 nm  we have to calculate the frequency of radiation…

Q: calculate the wave link that corresponds to a frequency of 8.22 x 109 Hz

A: NOTE : In question you have made a typing error. It will be "calculate the wave length that…

Q: Assume for the following situations that Beer’s law remains linear. For (a) and (b), indicate…

A: According to Lambert's Beer Law. Absorbance is directly proportional to path length and molar…

Q: 5- Which of the following statements is true for photoelectric effect? a) Photoelectric current is…

A: As we know that, As the Intensity of radiation is increased,the number of incident photons increases…

Q: A pharmacy student is asked to determine the content of potassium in KCl tablets by flame…

A: In flame photometry, the concentration of the unknown metal ions can be determined by measuring the…

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: Determine the thickness of iron needed to achieve the following shielding goal. Iron density is 7.8…

A: Given: Density of iron=7.8 g/cm3 Atomic mass of iron=55.845u Iron mass attenuation…

Q: 1. Write the balanced chemical equation for the reaction of NazS2O3 and HCl in aqueous solution. 2.…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: 12/ACCORDINg to the Bihe matel 4.When'elcotaon jumps from n-4 to n-2 IS the eneryy dBsOPBeD oR…

A: According to Bohr model the ∆E (energy difference) for any two energy level is given by the…

Q: Fluorescence occurs within (a) none of the above (b) 10-5 s (c) 10-5 ms (d) 10-5 ns

A: In fluorescence, matter absorbs light energy at a lower wavelength (higher energy) and emits light…

Q: A 31 W (1 W = 1 J/s) lamp generates violet light at a wavelength of 420 nm. How many photons of this…

A: First calculate energy of one photon.

Q: 2. (a) When there are extra chloride ions in solution, [CoCl4]2– complex ions can form, which are a…

A: Cobalt tetrachloride is a complex ion, which is different from Cobalt +2 ion. Hence exhibit…

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: 5 2. RED ORANDE YELLOW OREEN BLUE BROWN IL 6 9 4

A: The Retention factor of brilliant blue can be calculated as follows

Q: 10 8 7 6. 4 3 2 1 1.1 ppm d, 6H 3.6ppm septet, 1H M/z 102

A:

Q: What is the concentration of copper ions in a solution within a cuvette that has an absorbance value…

A: Given: The value of absorbance is 0.697. The value of molar absorbtivity is 6.833×103 L/mol·cm and…

Q: A 0.2650 g rock sample of unknowm concentration was dissolved in HCI and diluted to 100.0 mL.…

A: The concentration of added standard Ca is calculated: [Ca] = C1 * V1 / V2 = 2.08 ug / mL * 5 mL /…

Q: 3. (a) Calculate the number of core and surface atoms for a 40 nm spherical FCC Cu particle. Find…

A: Formula used

Q: Question 31 All of the following are assumptions in Beer-Lambert's Law, EXCEPT: O A. Path length is…

A: According to Beer Lambert law, absorbance of a substance is directly proportional to path length and…