What is the wavelength (in meters and in nanometers) of electromagnetic radiation whose energy per quantum is 3.97 x 10–21 J? What type of electromagnetic radiation is it?

Q: The yellow colour in fireworks is often achieved by heating Sodium (I) chloride (NaCI) to about…

A: Given : The wavelength of light emitted = 520 nm = 520 X 10-9 m                        (since 1 m =…

Q: Which of the following is the relationship between the wavele frequency, v, of electromagnetic…

A: In chemistry , electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta,…

Q: 1a) What is the wavelength of a photon of light (in nm) whose frequency is 3.74 x 10^14Hz? 1b)…

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Q: What is the frequency and wavelength (in nm) of radiation that has an energy content of 1.850 x 10°…

A: Since the energy content is 1.850 x 103 KJ/mol Hence it means that 1 mole of radiation is having…

Q: A photon has a frequency of 5.6 x 108 Hz. What is the energy of this photon?

A: Frequency of photon = 5.6 × 108 Hz   Energy of the photon = ?

Q: A particular x-ray has a wavelength of 1.4 Å. Calculate the energy (in J) of one photon of this…

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Q: What is the wavelength, in nanometers, of light with an energy content of 1979 kJ/mol

A: We have:   Energy= E= 1979 KJ/mol We need to calculate the wavelength of light (in nm).  Using the…

Q: What is the energy of a mole of X-ray photons that has a wavelength of 6.17 x 10-7 m?

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Q: Excited hydrogen atoms emit light in the ultraviolet at 2.47 ´ 1015 Hz. What is the energy of a…

A: The energy of photon is given by  E = hf where E = energy of photon  h = Plank's constant = 6.626 X…

Q: Question attached

A: Given information: n = 5 to n = 1 Energy released = 1558 kJ/mol

Q: How much energy is released when an hydrogen atom electron with quantum numbers   (5,2,1,1/2) moves…

A: An atom is the basic and fundamental unit of matter. An atom consists of electrons and the nucleus…

Q: If an electron were to move from n=4 to n=2 and produce light with a wavelength of 495 nm, what is…

A: Given,Wavelength in nanometers = 495 nm.Conversion of nanometers (nm) to meters (m) can be done by…

Q: If the energy released by an electron making a transition from one hydrogen atom orbit to another is…

A: Given, Energy (E) = 3.02 × 10−19 J Wavelength (λ) = ? Note: planck constant (h) = 6.626 × 10-34 J.s…

Q: 12. What is the wavelength, in nanometers, of light with an energy content of 2112 kJ/mol? In what…

A: Energy per mole of photons has to be converted to energy per photon.

Q: What is the energy of a photon corresponding to radio waves of frequency 1.166 x 10° /s? Energy = J…

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Q: Carbon dioxide readily absorbs radiation with an energy of 4.67×10−20 J.. What is the wavelength (λ)…

A: Given is, Energy = 4.67×10−20 J

Q: Calculate energy of a photon having the frequency of 1.68 x1015 1/s

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Q: What is the wavelength in nanometers of photons with an energy of 50.8 kJ/mol?

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Q: What is the wavelength of an electromagnetic wave whose frequency is 4.08x10^6Hz?

A: Given, Frequency, ν = 4.08 × 106  Hz = 4.08 × 106 s-1   (1 Hz = 1 s-1) Wavelength, λ = ?

Q: An electron in the hydrogen atom makes a transition from an energy state of principal quantum number…

A: Answer:- This question is answered by using the calculation of shell number from which emission is…

Q: What is the wavelength (in meters) of radiation whose energy is 3.40 x 1019    Joules/sec?

A: The relation between energy and wavelength of a radiation is given by Plank-Einstein’s relation,…

Q: What is the wavelength of light emitted when the electron in a hydrogen atom undergoes a transition…

A: Given: Higher energy state (ni) = 4 Lower energy state (nf) = 2

Q: An electron in a hydrogen atom in the level n 5 undergoes a transition to level n 3. What is the…

A: We have to tell which option is correct by finding value of wavelength for transition from n = 5 to…

Q: What is the frequency of a wave of ultraviolet light coming from a blacklight, if its wavelength is…

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Q: Calculate the wavelength of a photon of electromagnetic radiation with a frequency of 91.7 MHz

A: Wavelength and frequency of a photon of an electromagnetic radiation are inversely proportional to…

Q: If a mole photons of light has 2.39 J mol^-1 energy, what is its wavelength and description?

A: Given that : Energy of the photon = 2.39 J/mol Thus, for 1 mole, Energy=2.39 Jmol×1 mol=2.39 J

Q: Microwave ovens emit microwave energy with a wavelength of 12.8 cm. What is the energy of exactly…

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Q: how many unique combinations of the quantum number l and m are there when n=5 and n=7?

A: The values of l when the principal quantum number is n are from 0 to (n-1).The values of ml when the…

Q: When an excited electron in a hydrogen atom falls from ?=7 to ?=2, a photon of ultraviolet light is…

A: According to RYDBERG FORMULA: 1λ=RHZ21n12-1n22 Rydberg constant, R=1.097 x 107 m-1 For the…

Q: What is the frequency of gamma ray radiation that has a wavelength of 11.4 pm?

A: Given :  Wavelength of gamma ray = 11.4 pm  To calculate :  Frequency of gamma ray

Q: If hydrogen atoms are excited to the n = 4 state, what is the maximum number of emission lines…

A: 1. No.of lines when an electron jumps from nth level to ground state = n(n-1)/2  2. wave length of…

Q: What is the wavelength of light emitted when an electron in a hydrogen atom undergoes a transition…

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Q: Microwave ovens use microwave radiation to heat food. The energy of the microves is absorbed by…

A: 1.To calculate the energy of a photon with a wavelength of 11.2cm, use the Energy relation:

Q: Calculate wavelength and frequency of waves. (a) A local radio station broadcasts at a frequency of…

A: (a) v = 93.6 MHz = 93.6 x 106 Hz λ = ?   (b) λ = 691 nm = 691 x 10-9 m v = ?

Q: Determine the energy of a transition in a hydrogen atom if an electron moves from n = 7 to n = 2.…

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Q: How many moles of photons with a frequency of 4.54 x 10^17 Hz is needed to make up 8.00kj of energy…

A: When energy is contained in form of packet, which is directly proportional to frequency of…

Q: (a) What is the wavelength (in nm) of radiation that has an energy content of 9.53 x 10° kJ/mol? x…

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Q: The quantum numbers n = 2, l = 0 describe how many orbitals?

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Q: If the energy of a photon is 3.13 x 1019 J, what is it's wavelength in nm (nanometers)?

A: Photon - It is a type of elementary particle. Is is the samllest unit of electromagnetic radiation…

Q: What is the energy in kJ of a mole of photons with a wavelength of 440 nm?

A: According to data given in the question,Wavelength of photon = 440 nmIt is known that, 1 nm = 10-9…

Q: How much energy (in Joules) is associated with a de Brogile wavelength of 6.80 x 10-7 meters?

A: The relationship between the energy and wavelength is given by  where E = energy  h = Plank's…

Q: What are the energy in joules and the wavelength in meters of the photon produced when an electron…

A: The change in energy in He atom is given by, ∆E=E1-E2=2.18×10-181n12-1n22 where n1 and n2 are the…

Q: if the frequency of a photon is 5.57 x 10^14 hz, what is the energy in kilojoules/mol of 1 mole of…

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Q: Calculate the wavelength of light with energy 1.32 × 10−23 J per photon?

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Q: What is the total energy (in kJ) of 0.6207 moles of photons that have a wavelength of 626.4 nm?

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Q: What is the energy of a photon corresponding to radio waves of frequency 1.479 x 10°/s? Energy = J

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Q: (A) A photon has a wavelength of 599 nm. Calculate the energy of the photon in joules. Enter your…

A: Since you have posted multiple un-related questions, we are entitled to answer the first only.

Q: 9.966×106 m What is the wavelength of this radiation in miles?

A: 1 meter =0.000621 mile

Q: How much energy (in kJ) do 3.0 moles of photons, all with a wavelength of 680. nm, contain?

A: According to Planck's quantum equation is  One photon energy (E) is equal to           E = hν E =…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.