A nitrogen gas laser pulse with a wavelength of 337 nm contains 3.83 mJ of energy.  How many photons does it contain?

Q: A hydrogen atom absorbs a 103-nm photon. Assuming its electron begins in the ground state, what…

A: The absorption spectrum of the atomic hydrogen atom has been divided into a number of spectral…

Q: 4.3 x 1018 photons of 525 nm are collected over a period of 2.5 hours. Calculatehow many joules of…

A: Number of photons is 4.3×1018. Wavelength of photon is 525 nm.

Q: An ampule of napthalene in hexane contains 5.00x10^-4 mol napthalene. The napthalene is excited with…

A: Given: 5.00 × 10-4 mol naphthalene in an ampule wavelength = 349 nm Energy emitted = 15.5 J…

Q: Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of…

A: The energy required is given by, E=m.C.∆T where m is the mass, C is the specific heat and ∆T is the…

Q: If a 755 nm photon travels in vacuum, what is the frequency of this photon? Recall that the speed of…

A: Given , speed of light ,c = 2.998 x 108 m/s Wavelength = 755 nm 1 nm = 10-9  m

Q: A nitrogen laser generates a pulse containing 10.1 mJ of energy at a wavelength of 339.6 nm. How…

A:

Q: Determine the energy of a photon with a wavelength of 404 nm.

A: Energy of a Photon is 4.92x10-19J

Q: 12. Calculate the energy of a photon of frequency 5.20x101 s1.

A: Given:Frequency of a photon = 5.20 *1011s-1The energy of a photon using given frequency is…

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.25  ×…

A: Given data: Radiant energy incident on human eye = 4.25 ×10−17 J Wavelength correspondence is given…

Q: A nitrogen laser puts out a pulse containing 27.0 m) of energy at a wavelength of 337.1 nm. How many…

A: Total Energy = (n × h × c)/√  √ = wavelength

Q: The absorption peaks of chlorophyll a are at 665 nm and 465 nm. Assume that a plant can convert all…

A: Energy of a radiation is affected by its frequency or its wavelength. The radiant energy (E)…

Q: A laser emits 2.13 * 1016 photons per second, each of which has wavelength 625 nm. Find (a) the…

A: A. Wavelength of photon = λ= 625 nm Energy of single photon is calculated by using formula,   E=hcλ…

Q: A laser produces 20.0 mW of red light. In 1.00 hr, the laser emits 2.29 * 1020 photons. What is the…

A: The relation between energy of a photon and wavelength is as follows,…

Q: What is the energy of a photon with a wavelength of 655nm?

A: Given information: Wavelength of a photon is 655 nm

Q: The electron in a ground-state H atom absorbs a photon of wavelength 97.20 nm. To what energy level…

A:

Q: A particular laser consumes 200.0 Watts of electrical power and produces a stream of 1.34×1019 1050…

A: Percent efficiency can be defined as the energy produced divided by the energy consumed multiplied…

Q: Calculate the energy of a single photon of red light with a wavelength of 750 nm. Calculate the…

A: The energy ‘E’ which is present in a photon is used to represent the smallest possible ‘packet’ of…

Q: The electron in a ground-state H atom absorbs a photon of wavelength 97.20 nm. To what energy level…

A: The wave no. which is the reciprocal of wavelength corresponding to any line in a H-series is given…

Q: A photon of light has a wavelength of 0.050 cm. Calculate its energy.

A:

Q: Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of…

A: The formula for heat absorbed by water can be written as follow: mwaterC∆T Here C is the specific…

Q: What is the energy of a photon that has a wavelength of 488.7 nm?

A:

Q: Retinal damage can be caused by light between 445 nm and 470 nm. What is the energy in kJ/mol of…

A: The energy per mole of a photon is calculated using the following expression,…

Q: Determine the energy, in J, of a photon with a wavelength of 313 nm.

A:

Q: Determine the energy of a photon with a wavelength of 364 nm.

A: Given the wavelength of photon, λ = 364 nm We have to find the energy(E) of the photon.

Q: A nitrogen laser puts out a pulse containing 35.2 mJ of energy at a wavelength of 337.1 nm. How many…

A: Given,

Q: How many moles of photons are in a pulse if the pulse has a wavelength of 600 nm and a total energy…

A:

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

A:

Q: A photon has a frequency of 3.0 × 10⁸ Hz. What is the energy of this photon?

A: Energy of a photon =  hv Where h is planck's constant and have value 6.626×10−34 joule-sec. And v is…

Q: Which has the shorter wavelength, light with frequency 422kHz or light with frequency 422MHz?

A: The frequencies of the given light are = 422 kHz and 422 MHz The wavelength with a short wavelength…

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: Calculate the frequency (in s) of photons that have an energy of 89.11 kJ/mol.

A: E = h ν  where  E = energy 1 mol of photons = 89.11 KJ  x 1000 J/1 KJ = 89110 J h = Planck's…

Q: The electron in a ground-state H atom absorbs a photon of wavelength 97.25 nm. To what energy level…

A: Given  Wavelength = 97.25 nm = 97.25 × 10-9 m Ground state level = initial Level = n1 = 1  After…

Q: A certain microwave oven delivers 750 watts (Js) of power to a coffee cup containng 54,7 g of water…

A: Mass of water = 54.7 g  Initial temperature of water Ti = 23.9 °C  Final temperature of water Tf =…

Q: Determine the energy of a photon with a wavelength of 324 nm.

A:

Q: What is the energy of a photon corresponding to radio waves of frequency 1.286 × 10° /s? Energy = J…

A:

Q: A ground-state H atom absorbs a photon of wavelength 97.25 nm. What higher energy level did the…

A: We need to calculate the value of the higher energy level for the transition with wavelength 97.25…

Q: A ground-state H atom absorbs a photon of wavelength 91.50 nm. What higher energy level did the…

A:

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.0×10−17…

A: Given, Total energy is 4.0×10-17 J.Wavelength of the incident light is 595-nm. Energy of one photon…

Q: Calculate the number of photons if a light source emists a total energy of 0.01 W with a wavelength…

A: The conversion factor for nanometers to meters is, 1 m = 109 nm or 1 nm = 10-9 m The wavelength is…

Q: Calculate the energy of one photon of yellow light that has a wavelength of 589 nm?

A: The energy of a photon can be calculated by using the formula.

Q: Determine the energy of a photon with wavelength 786 nm.

A: Interpretation- energy of photon. Concept introduction – Photons are electrically neutral Photons…

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.0×10−17…

A: We know that energy of a photon (E) is related to wavelength (λ) and number of photon (n) as E =…

Q: Calculate the energy of a photon that has a wavelength of 91.1 nm.  Recall that 1 m = 109 nm.

A: Energy = 2.18x10-18J

Q: Microwave ovens emit microwave energy with a wavelength of 12.3 cm. What is the energy of exactly…

A:

Q: A laser pulse with wavelength 532 nm contains 3.85 mJ of energy. How many photons are in the laser…

A:

Q: What is the total energy associated with a pulse of 5.00 × 1017 photons if each photon possessed a…

A: The number of photons is = 5.00 × 1017 The frequency of the photon is = 4.79x1014 Hz

Q: What is the energy of a mole of photons that have a wavelength of 755 nm?

A: Given that: wavelength = 755 nm = 755 x10−9 m To find, the energy of a mole of photons that have a…

Q: An electron in a hydrogen atom relaxes to the n = 4 level, emitting a photon of 114 THz. What is…

A: According to the Rydberg equation: The mathematical expression can be written as: Where λ is the…

Q: Calculate the energy of a mole of photons corresponding to a wavelength of 300 nm.

A:

Q: When a particle of mass 9.1 x 10-28 g in certain 1-D box goes from the n = 5 level to the n=2 level,…

A:

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.