Complete the information on these tables: wavelength 470 nm   conc Um absorbance % transmission 700  0.45  35.58% 500  0.32  47.78% 300  0.19  64.2% 100  0.06  86.23% wavelength 502 nm   conc Um absorbance % transmission 700  1.08 8.37% 500  0.77 16.99% 300 0.46   34.57% 100 0.15  70.15%     Which mathematical relationship is most useful to relate concentration to the amount of light passing through the solution? (% Transmission, or Absorbance), Why? How does the slope of the absorbance/concentration graph vary with wavelength? Is there an “optimum” wavelength for your KMnO4 sample?

Q: The Following lamp can be used for Ultraviolet and visible Spectrophotometric measurements: Mercury…

A: Spectrophotometry is a technique used to determine the concentration of unknown species in the…

Q: Atomic emission spectroscopy relies on emission of light by the analyte. An ICP plasma has a…

A: As per Boltzmann equation, the ratio of populations of two energy levels is given as: N2N1=eE1-E2kT

Q: local FM radio station broadcasts at an energy of 6.61×10-29 kJ/photon. Calculate the frequency at…

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A:

Q: 37. The Rydberg constant for deuterium (?H) is 109707 cm-1. What is the shortest wavelength in the…

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Q: 6. Rand the following photons in terms of decreasing energy: IR (v= 6.5 x 1013 Hz), microwave (v =…

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Q: 3. A 2.50×104M solution of a dye has an absorbance of 0.680 when measured in a 1.00 cm cell at 625…

A: The relation between absorbance and transmittance is given by A=2-logT     or A=-logT where A=…

Q: What is the sample absorbance of a liquid with 20.4% of the incident light being transmitted through…

A: Absorbance is also called as optical density  and it is the quantity of light absorbed by the…

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A: Given question is Absorption of what type of electromagnetic radiation results in transitions among…

Q: Q5) A student is tasked to determine the number of moles of H2SO4 (aq) in a 200 ml of an unknown…

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Q: A UV-visible spectrophotometer can be used to determine the concentration of a substance that…

A: Given statement, A UV-visible spectrophotometer can be used to determine the concentration of a…

Q: 91 The rotational spectrum of Br Br has lines 0.154 cm apart. Each line corresponds to a transition…

A:

Q: 100 80 60 40 20 - -0. 3000 2000 1000 Wavenumbers (cm-1) %Transmittance 川| 1862.43 1782.54 1458.51…

A: From IR one can get a glimpse of some functional groups like carbonyls, hydroxyl, aromatic C=C bond…

Q: Q 1/ Explain the physical effect of the movement of molecules in the liquid and gaseous state on the…

A: The process of absorption occurs when an atom absorbs energy from its ground state and goes to…

Q: what is the relationship between absorbance and transmittance? kindly explain it briefly

A: Incident light can be defined as the light that strikes on a solution.

Q: 86- 84- 64- 62- 4000 3500 3000 2500 2000 1500 1000 500 Wavenumbers (cm-1) %Transmittance 8 富 8…

A: Some frequencys of group functions.O-H Stretching → 3200 - 3500 cm-1                N-H → 3300 →3600…

Q: Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic…

A: Given : Wavelength = 28.3 μm

Q: Wavenumber cm-1 3500 3000 2500 2000 1500 1000 3388.53 1215.44 96.5 Transmittance [%] 97.5 98.5 99.5

A: The IR spectra  help us to analyze  the functional  group in unknown compound.

Q: 75 60- 55- 50- 45 40 35- 30 25- 20- 15- 10- 5- 3000 2500 2000 1500 1000 4000 3500 500 Wavenumbers…

A: Some important and characteristics IR peaks are discussed below.  A. Strong peak at 3060-3080 cm^-1…

Q: 85 80 75 65 2500 2000 1500 Wavenumbers (cm-1) %Transmittance 70 3098.57 3067.97 2880.13 2160.42…

A:

Q: 1. Amelia's light saber has an ideal wavelength of 0.632 um, but she only has a device to measure…

A:

Q: Express 4000 Å h = 6.626 x 10-34 J s c = 2.998 x 108 m s-1 a. In nanometers: b. As a wavenumber…

A: Angstroms and nanometer has 0.1 power difference, and wavenumber is inverse of wavelength.

Q: |108 m 10-11.5 | 10-15 m |104 m 1016.5 Hz Smallest range of light 1019.5 Hz1015.5 Hz -3.5 | 10-7.5 m…

A: Electromagnetic radiation having higher energy, has higher frequency and lower wavelength renge.

Q: Wavenumber (ν) is another way to describe light. Basically it tells us how many wavelengths are…

A: The relation between wavelength and frequency is given by, ν=cλν=frequency of radiationλ=wavelength…

Q: A nanocrystallaine sample of CdSe emits an orange glow that has a wavelength of 570 nm. What is the…

A: Concept:  Light upon transmission have certain wavelength and the frequency. Using the wavelength or…

Q: The Rydberg constant for deuterium (*H) is 109707 cm'. What is the shortest wavelength in the…

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Q: Useful constants: N= 6.022 x 103 mol"; k= 1.381 x 10-23 J K-'; h=6.626 x 10- Js; c = 2.998 - 10*…

A: the answer is hand written attached

Q: A 50.0 mg sample was dissolved in acid and then diluted to a total volume of 50.00 mL. If 1.000 mL…

A: In spectrophotometric measurements of analyte concentration, measured absorbance related to the…

Q: Illustrate the basic parts of the following: a. AAS b. FAES c. HGAAS d. ICP-MS e. Florescence Atomic…

A:

Q: 3280 cm-1 to mm

A: The formula for converting between μm and cm-1 is ν ¯λ= 104. Frequency in Infrared Spectrophotometer…

Q: 6. Rand the following photons in terms of decreasing energy: IR (v= 6.5 x 1013 Hz), microwave (v =…

A: Numerically, The energy (E) of photons is related to frequency (ν) of photons in the following way…

Q: Calculate the frequency of a 495-570 nm of wavelength 514.5 nm

A: In this question, we want to determine the frequency of a wavelength is equal to 514.5nm lie between…

Q: wavelength (um) 5 5.5 6 8 9 10 11 2.5 100 3.5 4.5 12 13 14 15 16 80 (d) 1604 60 40 20 1742 4000 1200…

A: Using IR spectroscopy  -Only the functional group of the molecule can be determined.  - In order to…

Q: Kiko wants to determine the concentration of an unknown solution which produces a green solution.…

A: A question based on analytical process that is to be accomplished.

Q: 01 -5 -10 -15 -20 2500 2000 1500 4000 3500 3000 Wavenumbers (cm-1) %Transmittance 5, 5 58 * 20 382 8…

A: The question is based on the concept of IR Spectroscopy.   we have to analyse the spectra provided…

Q: 75- 70- 65 60 55 40 35 30 20- 15 10- 5- 0- 4000 3500 3000 2500 2000 1500 1000 500 Wavenumbers (cm-1)…

A:

Q: Calculate the frequency of light with wavelength 126 nm. a) 2.38 × 1015 s-1 d) 2.65 × 10-2 s-1 b)…

A: The frequency of light has to be calculated. Given data contains,  Wavelength of light is 126 nm.

Q: If you had a sample which contained both copper ion and cobalt ion, what wavelength ranges would you…

A: Copper ion and cobalt ion are both transition metal ions.Most of the transition metals form colored…

Q: Fluorescence measurements of concentration are inherently more sensitive than spectrophotometic…

A: Fluorescence  spectroscopy is more sensitive instrumental technique, as in spectrophotometer…

Q: 79 91 -1 The rotational spectrum of Br Br has lines 0.154 cm apart. Each line corresponds to a…

A: We have to predict the bond length.

Q: The IR and mass spectra of a compound are shown below. Suggest a possible structure for the…

A:

Q: What is the frequency (Hz) of electromagnetic radiation with wavelength 644nm (6.44 X 10^-7m)

A: Frequency ( v ) :-  The number of waves that passes through o point in one second is called…

Q: Does an electromagnetic spectrophotometer using photoelectron spectroscopy exist? Explain why or why…

A:

Q: 1. A solution of a dye absorbs light of wavelength 480 nm, and for this absorption, the extinction…

A: The answer to the following question is: The Beer-Lambert law states that there is relationship…

Q: Define the following terms: spectrophotometer, absorbance, pathlength, & (also known as molar…

A: Spectrophotometer: Spectrophotometer is an instrument that measures the amount of photons i.e.,…

Q: Convert the accompanying transmittance data to absorbances: (a) 25.5% (b) 32.8% (c) 0.085

A: Given data: The transmittance values (a) 25.5% (b) 32.8% (c) 0.085% To find: The absorbance for all…

Q: Food dye spectroscopy  2. At what wavelengths should the readings be taken? What instrumentation…

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Q: Convert the following values of transmittance to absorbance: (a) 98, (b) 80, (c ) 50, (d) 10, (e)…

A:

Q: The average velocity of the atoms emitting a photon at 676 nm was 3184 m/s. What is the contribution…

A: Doppler linewidth is given as: ∆λ=λvcwhere,λ=wavelengthv=average velocityc=speed of light in vacuum

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.