Why is 800nm used for the wavelength when measuring the absorbance of the blue copper II sulfate solution?

Q: Mg emits radiation at 285 nm. Could a spectrometer be used to detect this emission?

A: Given, Mg emits radiation at 285 nm, we are asked that Could a spectrometer be used to detect this…

Q: Calculate the wavelength in hydrogen spectrum for the emission that results from the transition n =…

A: The wavelength in hydrogen spectrum can be expressed as follows-

Q: How many photons are produced in a laser pulse of 0.347 J at 447 nm?

A: Energy of each photon is given by  E = hc/λ where h = Planks constant = 6.626 X 10-34 Js c = speed…

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

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Q: A metal has a threshold wavelength of 500 nm. a. What is the binding energy of the outer electron in…

A: a.)Threshold wavelength= 500nm = 500 × 10-9 m threshold frequency = c/λ = 3×108ms-1/500×10-9m…

Q: Calculate the number of photons in 10' L of radiation in a thermal equilibrium at 500 K. (A) 2.52 ×…

A: given = photon = 1000L             convert the given radiation of photons in the joule.…

Q: What is the frequency of radiation of wavelength 240 nm? Give your answer in Megahertz (MHz). Nb. 1…

A: Write the relationship between speed of light, frequency and wavelength of radiation. c=λν c is the…

Q: Frequency of 486 nm wavelength

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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: Consider the electronic transition = 10 → n = x in the H atom. The energy associated with this…

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Q: Calculate the wavelength, frequency, and wavenumber of the n = 2 → n = 1 transition in He+.

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Q: If a solution has an absorbance value of 0.325 at a wavelength of 450 nm, what is the percent…

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Q: calculate the total amount of energy on units of kj for 0.380 moles of 550 nm photons

A: The energy corresponding to 'N' photons is calculated as: E =Nhcλ where N is the number of photons,…

Q: (4) Electrons are no longer ejected from a sample of metal whenever it is illuminated by light with…

A: As per rule only three sub-parts can be answered:

Q: How many photons are produced in a laser pulse of 0.361 J at 653 nm?

A: Given, energy of laser pulse = 0.361 J Wavelength = 653 nm   1 nm = 10-9 m 653 nm = 653 x 10-9 m

Q: How many photons are produced in a laser pulse of 0.169 J at 489 nm? photons:

A: Wavelength = 489 nm Energy produced in laser pulse = 0.169 J

Q: If the infrared radiation has wavelength of 3.5 microns, what will be the wave number in cm^-1? A.…

A: Given: Wavelength = 3.5 microns = 0.00035 cm

Q: Calculate the wavelength, frequency, and wavenumber of the n = 5 → n = 4 transition in Li2+.

A: Given ion:  Li2+ n = 5 → n = 4

Q: A UV light with a wavelength of 250. nm is shone on the silver surface. What is the incident energy…

A: Energy is inversely proportional to wavelength

Q: (1)Calculate the average distance a 100 keV photon will travel in graphite.   (2) Calculate the…

A: Note: As per our company guidelines, we are supposed to answer only 1st question at a time. Kindly…

Q: The power of a red laser (2 - 630 nm) is 3.00 watts (abbreviated W, where 1 W-1 J/s). How many…

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Q: A nitrogen laser puts out a pulse of 45.7 mJ of a wave length of 390.5 nm. How many protons is this?

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Q: How many photons are produced in a laser pulse of 0.463 J at 499 nm? photons:

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Q: Compare the energy output of a black-body radiator at two different wavelengths by calculating the…

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Q: wavelengths. 요 λ = 219 nm

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Q: Draw simple atomic energy level diagrams showing the following processes: Atomic Absorption Atomic…

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Q: Suppose that the junction between two semiconductors can be represented by a barrier of height 2.0…

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Q: What is the frequency in kHz of a photon with a wavelength of 50.7 nm?

A: Frequency is defined as the number of cycles per second. Wavelength is defined as the distance…

Q: Calculate the frequency of a 495-570 nm of wavelength 514.5 nm

A: In this question, we want to determine the frequency of a wavelength is equal to 514.5nm lie between…

Q: Calculate the total amount of energy in units of kJ for 0.345 moles of 567 nm photons.

A: Given - - > Wavelength, λ = 567 nm = 5.67 x 10-7 m Number of moles, n= 0.345 mol speed, c = 3 x…

Q: In an X-ray photoelectron experiment. a photon of wavelength 100 pm ejects an electron from the…

A: Given Wavelength = 100 pm 1 pm = 10-12 m 100 pm = 100 pm x 10-12 m / 1 pm = 100 x 10-12 m speed =…

Q: 9. It is observed that light of wavelength 430 nm just begins to emit photoelectrons from a surface.…

A: When the light falls on a metal surface the electron emits from it and produces photo current . The…

Q: 4. (a) Calculate the Doppler width (as a fraction of the transition wavelength) for any kind of…

A: Given: Temperature = 25 oC = 298 K Molar mass of HCl = 36.45 g/mol Let the transition wavelength be…

Q: 2. FeSCN'(aq) makes a dark orange colored solution (while Fe²* and SCN¯ are essentially colorless).…

A: A color wheel is a circle of colors which illustrate the relation between absorption and…

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: The flux of solar energy reaching the Earth’s surface is approximately 7J/cm2. Assume that all of…

A: The maximum efficiency is 35%. Surface area of leaf is 10 cm2  Amount of solar energy is 7J/cm2  The…

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: Which is the correct depiction of the electron transfer of Na and Cl? • Na.

A: Here, we have to find the correct depiction of the electron transfer of Na and Cl.

Q: When light of sufficient high frequency is used to illuminate a typical metal surface, a…

A: The wavelength will be 72.7 nanometer.

Q: how many photons are there in a 7.00 mJ laser beam of wavelength 785 nm?

A: The wavelength is given as 785 nm and the energy of 1 photon having this wavelength is calculated…

Q: Consider a three-level laser system. The wavelength for an absorption from level A to level C is 477…

A: We will draw diagram and then using it calculate required wavelength.

Q: m wavelength c

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Q: For photolytic degradation, the organic pollutant molecule must have a chromophoric group that is…

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Q: How many photons are produced in a laser pulse of 0.801 J at 547 nm? photons:

A: Given energy of laser pulse = 0.801 J wavelength of photon = 547 nm

Q: Calculate the energy (in J) of one quantum radiation of (a) frequency 5 x 1014 Hz, (b) wavelength…

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Q: Neutrons, like electrons and photons, are particle-waves whose diffraction patterns can be used to…

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