2 students make solutions of CuCl2.2H2O using 25-mL volumetric flasks. student A weighs out 2.489g of solid, and student B weighs out 1.867g. c.) which solution would you expect to absorb more light in the colorimeter? Briefly explain.

Q: 35 ghz, what is the wavelength of the photons emitted, in m?

A: 1ghz = 10^9 hz We have  Velocity of light =frequency ×wavelength

Q: If the absorbance of the sample is1.00 at a specific wavelength, what is the percentage amount of…

A: The relation between absorbance and transmittance can be calculated with the help of Beer-Lambert…

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: Differentiate between infrared radiation and microwave radiation?

A: Microwave and Infrared radiations both are the forms of electromagnetic radiation. The microwave…

Q: If we want to warm 6.74g of water from 13C to 32C with a microwave using 32.3cm wavelength IR…

A: 6.74 g of water is heated from 13 °C to 32 °C in a microwave using 32.3 cm of IR wavelength .We…

Q: Describe the difference between red and violet light

A: Light or visible light is electric radiation within the part of the electromagnetic spectrum that…

Q: What is being described in the following items?…

A: We have to predict the correct expression for given terms.

Q: The dust in a molecular cloud emits at maximum intensity at a wavelength of 57 µm. What is the…

A: The relationship between wavelength of the spectra emitted and the temperature can be explained by…

Q: The atoms of the medium then continually absorb and re-emit the particles of light which increases…

A: Speed of light changes  from propagating one medium to other because on going one medium to other…

Q: How would density of states (DOS) vs energy plots behave for quantum wells, quantum wires and…

A: Solution: Density of states-(DOS)- The density of states (DOS) is the number of distinct states that…

Q: Chemistry What is the relative probability of an -ray will undergo a photoelectric interaction in…

A: To get:   Relative probability an-ray of bone

Q: A liquid is exposed to infrared radiation with a wavelength of 4.04x10-4 cm.4.04x10-4 cm. Assume…

A: Heat energy and number of photons are related as :  E = nhv  where , E = heat energy in Joules. n =…

Q: We don’t see a car moving as a wave on the road why?

A: According to de Broglie relation,

Q: 1.0 M Zn(NO3h 1.0 M CUSO How would the intensity of light from the bulb change if you were to:…

A: Topic- Redox reaction between Cu(s)/Cu2+ and Zn(s)/Zn2+.

Q: 1. Which of the following is NOT a quantum number? Principal Spiral Magnetic Azimuthal 2. What is…

A: According to quantum mechanics, there are four types of quantum numbers. The electrons are filled in…

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: 1. Calculate the internal energy and heat capacity of the conduction electrons in a block of…

A: Given that : Volume (V) of block = 2 m3 Temperature (T) = 600°C = 873 K The density of magnesium is…

Q: The deflection of light particles passing through a particular medium is called refractive index.…

A:

Q: Q10. The appearance of quantization effects in the nanometre range is due to... O O O O All of them…

A: The size and appearance of nanometre range depends on the mobility of electrons .

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: A nitrogen molecule is confined in a cubic box of volume 1.00 m3. (i) Assuming that the molecule has…

A: We have value for volume =1.00 m3Translational energy =32kTE -Translational energyk  -Boltzmann…

Q: A solution was made and its absorbance was measured to be A. If the path length of the light passing…

A: Absorbance is quantity of light absorbed by  solution. We use Beers Lambert la to calculate quantity…

Q: 1. What factors are included in the Beer's law expression for determining how much light passes…

A:

Q: A microwave oven generates photons at a frequency of 900 GHz. Assuming all the photonenergy is…

A: Given: Mass of water is 125 g. Initial temperature is 25° C. Final temperature is 100° C. Frequency…

Q: If unpolarized light shines through two polarizing filters oriented at 90 degrees to each other,…

A: This can be solved by using concept of polarization using Malus law. Malus law states, I = IoCos2(θ)

Q: H3PO4 (K, = 7.5x1o-3) %3D HC2H3O2 (K, = 1.8x10-5) %3D

A: Acidic strength is depend on tendency to lose hydrogen ion. As higher the value of Ka, stronger is…

Q: The characteristic orange light produced by sodium in a flame is due to the intense emission called…

A: Given refractive index of air, n = 1.0002926. Wavelengths measured in vacuum, λvac = 589.15788 and…

Q: What color of light is released if a wavelenght of 6.4 x 10-7 is emitted?? Yellow Red Violet O…

A: The solution is given below -

Q: Jessica is olanning on painting her room, She happens to like light that has a wavelength of 96.3.m.…

A: Using the relation between wavelength and frequecy and speed of light we can find frequecy of light…

Q: Assuming that sunlight produces 3.066x1022 UV Photons/m2s and that the skin absorbs one-half of…

A: Energy from sun comes in the form of bundles of energy. These bundles of energy are called photons.…

Q: Who introduced the method of treating a photon gas ?

A: This question is related to elementary particles.

Q: 22) A parallel beam of monochromatic light of wavelength 490nm is incident on a diffraction grating.…

A:

Q: How is the behavior in general regarding the absorption and emission spectra of fluorescence and…

A: Fluorescence:-It is an important physical phenomenon in which light is absorbed at one wavelength,…

Q: Compare: absorption of light at a certain wavelength 1. H₂C CH₂ II. H₂c. CH₂ the quantity in I is…

A:

Q: What color of light is released if a wavelenght of 6.4 x 107 is emitted??

A:

Q: Light of wavele'ngth λ0 in a vacuum has a wavelength of 452 nm in water and a wavelength of 412 nm…

A: Given the wavelength of light in water, λ = 452 nm Wavelength of light in vacuum = λo Refractive…

Q: At a quantum level, the atoms of both glass and ground glass should be identical. If the absorption…

A:

Q: Ultraviolet light with a wavelength longer than about 295 nm has little germicidal value. What is…

A: Given: The wavelength of the ultraviolet light = 295 nm Or wavelength = 295 ×10-9 m    (1nm = 10-9…

Q: 1. How fast does light travel in glass of refractive index 1.5?

A:

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: What color of light is released if a wavelenght of 6.4 x 10 -7 is emitted?? O Yellow Red O Violet…

A: Concept:  Wavelength and colour: Visible light waves have series of different wavelengths. The…

Q: Which of the following statements describe phosphorescence?     A. the emission of a photon during…

A:

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

A:

Q: What is the diagonal effect? How does it explain the similarity in chemistry between, for example,…

A: Diagonal effect is the relationship between two adjacent elements which are located in second and…

Q: 6.11 Single-walled carbon nanotubes have been used to assist in the delivery of cisplatin to cancer…

A: Carbon nanotubes are devised in the form of cylindrical molecules and are basically the carrier…

Q: 6) (a) The solubility of carbon tetrachloride (CCI4) in water at 25°C is 1.2 g/L. The solubility of…

A: We will give explain both of the answer

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.