It requires 6.89 x 10^-19 J of energy of electromagnetic radiation to remove an eletron from a certain metal surface. calculate the maximum wavelength of light that can do this. Give your answers in nanometers.

Q: How many photons with a wavelength of 877 nm are needed to melt 473 g of ice? The enthalpy of fusion…

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Q: Sodium vapor lamps are used to illuminate streets and highways. The very bright light emitted by…

A: ELECTROMAGNETIC SPECTRUM The distribution of electromagnetic radiation according to frequency or…

Q: Rank the following forms of light in order of increasing wavelength. The first form in your ranking…

A: An electromagnetic spectrum is the arrangement of various types of electromagnetic radiation by…

Q: laser technician measures the wavelength of light from a new semiconductor laser. The wavelength is…

A: The question is based on the concept of unit conversions. we have been given wavelength in metres.…

Q: The light produced by a red neon sign is due to the emission of light by excited neon atoms.…

A: When the light is passed through a prism, it separates into different frequencies it contains. This…

Q: 12. The energy required to excite an atom from level n=1 to level n=2 is 1.43 x 10-17 J. Calculate…

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Q: a) A 555.0 g sample of liquid water is exposed to the light emitted by a nitrogen laser. Assuming…

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Q: electrons in an atom can be described by the following quantum numbers? n = 5, l= 3, ms = – ½ a. 7

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Q: At a given point in its orbit, the moon is 2.4 x 105 miles from earth.  How long does it take light…

A: Given : Distance between earth and moon = 2.4 X 105 miles. And the speed of light = 3.0 X 108 m/s.

Q: What is the wavelength of a photon emitted during a transition from  n1 = 5  to the n2 = 2 state in…

A: Correct Option b : 434 nm

Q: Why do we not notice the wavelengths of moving objects such as automobiles?

A: Given information,   We not notice the wavelengths of moving objects such as automobiles

Q: Barium chloride (BaCl2) emits a green color when flame-tested. What can be said about the wavelength…

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Q: The energy required to remove one electron from the surface of copper is 7.53 x 10-19 J. What is the…

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Q: A carbon-oxygen double bond in a particular molecule absorbs electromagnetic radiation that has a…

A: Given, frequency =4.3×1014 sec-1 , A carbon-oxygen double bond ina particular molecule absorbs…

Q: the shape and the material of the prism the shape of the prism and the material of the light the…

A: White light when encounters a prism, it bend and form VIBGYOR.

Q: How many orbitals are described by each of the below combinations of quantum numbers? n = 4, ℓ = 2,…

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Q: 8. Which of the following arrangement is correct in order of increasing energy: a) IR < Vis < UV b)…

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Q: Most remote controllers for AV equipment emit radiation with the wavelength profile shown in the…

A: Here peak lies approximately at 950nm that is of the order of 10-7 m Mathematically,  950 nm =…

Q: The average speed of a diatomic oxygen molecule at 25 degrees Celsius is 482.1 m•s^-1. What is the…

A: Given : Speed of oxygen molecule = 482.1 m/s Molar mass of O2 = 32 g/mol

Q: Arrange the following kinds of electromagnetic radiation in order of increasing wavelength:…

A: As the energy of the photon is increases, then the wavelength of light is decreases.            E =…

Q: 1.) Which produces a shorter wavelength of light: an electron jumping from a hydrogen atom’s 6th…

A: For Hydrogen spectrum, if the light has more energy, then wavelength is shorter. Wavelength can be…

Q: How many electrons in an atom can have the following quantum numbers? n = 6, ℓ =

A: Quantum numbers are used for determining the position and energy of an electron in the atom.

Q: Which of the following electrons will emit light of LONGER WAVELENGTH in hydrogen? An electron…

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

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

A: Answer:- firstly from the given transition, energy change is calculated then using the relationship…

Q: A liquid is exposed to infrared radiation with a wavelength of 3.10 × 10–4 cm. Assume that all the…

A: The energy of the radiation is quantized. The smallest unit of energy of the radiation is known as…

Q: Consider light with a wavelength of 1.25 x 10-1° m. What is the frequency (in Hz) of this type of…

A: The question is based on the concept of dimensional analysis. we have been given wavelength of…

Q: The energy of light photons varies with wavelength. Calculate the energy per mole of photons for…

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Q: An electron in a H atom is in the n=4 energy level. What wavelength of light (in Nm) would have to…

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Q: When electrons move from one electronic energy level to another, a specific amount of energy is…

A: The wavelength for the hydrogen atom may be calculated as :1λ=1096771n12-1n22where λ is the…

Q: Light in the infrared portion of the electromagnetic spectrum excites vibrations of certain…

A: Given: power = 1000 mW wavelength = 808 nm volume of water = 50.0 mL initial temperature = 22.0 oC…

Q: Identify weather the following sets of quantum numbers  possible or not possible n = 4  l = 1   m =…

A: 1) n = 4, l = 1,  m = -2,  s = + 1/2 the value of m cannot be greater than l. value of m lies from…

Q: Arrange the following regions of the electromagnetic spectrum in order of decreasing wavelength:…

A: The wave length of microwaves spectrum is 109 A0. The wave length of infrared radiation is 105 A0.…

Q: microwave oven operates at 2.90 GHzGHz . What is the wavelength of the radiation produced by this…

A: Energy is directly proportional to the photon's electromagnetic frequency. It is inversely…

Q: 44) Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency…

A: Energy , E =h v , where v is frequency of light. The capacity to do work is known as energy.

Q: What is the energy of a photon that has a wavelength corresponding to the peak in the figure?…

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Q: Microwave radiation has wavelengths from 1.0×10-3 to 1.0 m, whereas the wavelength region for X-ray…

A: To solve this problem we will use the formula .   Frequency × wavelengths = speed of light

Q: t takes  338./kJmol  to break an carbon-chlorine single bond. Calculate the maximum wavelength of…

A: To solve this problem first we have to calculate the energy required to break one single bond…

Q: black colored algae is very dark because it absorbs what range of visible light? dark blue all…

A: Colours are appeared when a certain colour is reflected and rest of the colours are absorbed.

Q: Part a) A line in the spectrum of atomic mercury has a wavelength of 252 nm. When mercury emits a…

A: a. We know that frequency v = c/lambda  Here, c = velocity of light = 3*10^8 m/s  Lambda =…

Q: Which color of the visible spectrum has the longest wavelength (750 nm)? O orange violet green red O…

A: Light At the lower end of visible spectrum, having a longer wavelength about 750 nm is seen and…

Q: The blue color of the sky results from the scattering of sunlight by air molecules. The blue light…

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Q: A liquid is exposed to infrared radiation with a wavelength of 8.65×10−4 cm.8.65×10−4 cm. Assume…

A: The energy carried by a photon can be calculated as follows :       Here, h =&gt; planck's constant…

Q: The sound wave travels in CO2 at 1.006kHz. We measure the average wavelength to be 23.63cm. What is…

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Q: Most remote controllers for AV equipment emit radiation with the wavelength profile shown in the…

A: Energy of a photon can be calculated by using the formula :                              E=hcλWhere…

Q: type of radiation red light A few different types of electromagnetic radiation are listed in the…

A: In the electromagnetic spectrum radiations are arranged in the order of decreasing wavelength and…

Q: 3. Choose the correct arrangement of three (3) types electromagnetic radiation in decreasing…

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Q: local FM radio station broadcasts at a frequency of 89.0 MHz.Calculate the wavelength at which it is…

A: Conversion of MHz into s-1 :

Q: What is the energy, in joules, of one photon of visible radiation with a wavelength of 464.1 nm?…

A: The energy of a photon is proportional to its frequency, as stated by the Planck - Einstein's…

Q: Infrared thermometers measure heat emitted from surfaces in the infrared range of the EMR spectrum.…

A: Relation between frequency and wavelength would be used .

Q: Radio wave radiation has wavelengths from 10 to 1000 m, whereas the wavelength region for…

A: 1)  lower than  frequency or energy inversely proportional relationship (wave length more so less…

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.