Calculate the wavelength (in nm) of light with energy 1.83×10−20 J per photon. For light of wavelength 450 nm, calculate the number of photons per joule.Enter your answer in scientific notation. Determine the binding energy (in eV) of a metal if the kinetic energy possessed by an ejected electron (using one of the photons with wavelength 450 nm) is 2.93×10−19 J.

Q: A metal alloy of unknown composition was bombarded with 204 nm photons to determine its…

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Q: laser is emitting photons with a wavelength of 489.6 nm.  What is the energy for 1 mole of these…

A: Given, Wavelength= 489.6 nm Planck's constant=6.626x10-34 J s

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Q: When a metal is irradiated with light an electron is ejected with a speed of 1.01 x 106 m/s. If the…

A: Given data: Speed = 1.01 x 106 m/s Work function = 6.88 x 10-19 J

Q: What is the speed of the emitted electron if a hydrogen atom absorbs light of frequency 7.5 x 10^15…

A:

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: Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room…

A: To calculate the wavelength(λ), we have a relation              λ = h/mv where m is the mass, v is…

Q: A laser pointer used in a lecture hall emits light at 445 nmnm. What is the frequency of this…

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A: relation between energy and wavelength is given as: where E=minimum energy=7.59×10-19Jh= plancks…

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Q: 6.3 B (a) Calculate the wavelength (in nm) of light with energy 1.89 × 10−20 J per photon. (b) For…

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Q: Calculate the energy (in joules) of (a) a photon with wavelength 2.11 × 102 nm, and (b) a photon…

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

Q: electron

A: We are know that,  1nm = 10^-9m  Then,  1739nm = 1739 • 10^-9 m

Q: The electron in a hydrogen atom, originally in level n= 9, undergoes a transition to a lower level…

A:

Q: A metal alloy of unknown composition was bombarded with 204 nm photons to determine its…

A: The velocity of the photo ejected electron = 6.00 ×105 m/s. The wavelength of the ejected electron…

Q: A hydrogen atom in the ground state absorbs a photon of wavelength 93.8 nm.What energy level does…

A: The Rydberg equation was given by Johannes Rydberg and is expressed as :

Q: Calculate the wavelength in meters of light absorbed by an electron in an atom of hydrogen as it…

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Q: γγ-ray photons with a wavelength of 2.58×10−5nm Express the energy numerically in kilojoules per…

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A:

Q: A photon of ultraviolet (UV) light possesses enough energy to mutate a strand of human DNA. What is…

A: Introduction : We have to calculate energy , Wavelength = 35 nm

Q: 4. A carbon-oxygen double bond in a certain organic molecule absorbs radiation at a frequency of…

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Q: Calculate the wavelength of the emission line in units of nm for the hydrogen atom for ni = 12 and…

A: The wavelength of emission line in hydrogen when electron transition take place from ni to nf level…

Q: Calculate the energy, in joules, of a photon of ultraviolet light with a frequency of 6.8 * 10^15…

A: E = hϑ where, E = energy (J) h = planck's constant…

Q: Careful spectral analysis shows that the familiar yellow light of sodium lamps (such as street…

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Q: A photon of ultraviolet (UV) light possesses enough energy to mutate a strand of human DNA. What is…

A: Given: wavelength = 25 nm 1 mol UV photons = 6.022×1023 UV photons.

Q: The threshold frequency for magnesium is 8.84 x 1014 Hz.  If magnesium metal is exposed to a light…

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Q: A laser is emitting photons with a wavelength of 624.6 nm.  What is the energy for 1 mole of these…

A: The energy of the laser light can be calculated by - E = hv Or E = h c/^ Here - E = energy of the…

Q: Determine the shortest frequency of light required to remove an electron from a sample of Ti metal…

A:

Q: The retina of a human eye can detect light when radiant energy incident on it is at least  4.0  ×…

A: Energy of the electromagnetic radiation   (Ep) = hf Energy of the photon of blue light (Ep) = hc/ λ…

Q: For a hydrogen atom, calculate the energy of the photon that would be emitted for the orbital…

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Q: What is the energy of a photon of light with a wavelength of 2.00cm?

A: Given that,

Q: Calculate the energy in joules of one photon of radiation with the wavelength of 5.00 μm.

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Q: The work function of metal is the minimum energy required to produce photoelectric effect on that…

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A: Welcome to bartleby ! We have to calculate number of photons .

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A: Answer:

Q: Be sure to answer all parts.Calculate the wavelength (in nm) of light with energy 1.81 × 10−20 J per…

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A: Work function is defined as the minimum energy required to  eject an electron from the metal…

Q: (8.2)Place the following types of electromagnetic radiation in order of increasing wavelength.…

A:

Q: An electron in a hydrogen atom jumps from n=7 to n = 5 and emits a photon. What is the wavelength of…

A: Given , nfinal= 5 ninitial=7  R=1.097×107 m-1 Wavelength =?

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A: Given that, n2= 1 n1 = 7 Rydberg constant R= 2.18××10-18 J

Q: Radiation in the ultraviolet region of the electromagnetic spectrum is quite energetic. It is this…

A: Given data contains, Moles of photon is 1.00 mol. Wavelength is 370nm. The energy per photon is…

Q: The minimum energy required to remove an electron from a certain metal is 3.7 x 10– 19 J. If the…

A: Given,  The minimum energy required to remove an electron from a certain metal is 3.7 x 10-19 J Work…

Q: If an electron were to move from n=4 to n=2 and produce light with a wavelength of 580 nm, what is…

A: Conversion factor is a formula which defines the relation between one set of units of a particular…

Q: A silicon (Φ = 7.77 × 10-19 J) surface is irradiated with UV radiation with a wavelength of 195 nm.…

A: When any ray strike on metal surfaceEnergy of Incident ray =∅ of metal +Kinetic energy of emitted…

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.