The observed color of a solution is green. The Amax of the solution is expected to be in the following range: ultra violet nm Violet 400-455 nm 400 short wavelength high frequency Blue 455-492 nm a) 400-455 nm b) 492-577 nm c) 577-597 nm Green 492-577 nm 500 Yellow 577-597 nm Orange 597-620 nm 600 Red 620-700 nm 700 long wavelength low frequency infra red
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- Following the Woodward-Fieser's rules, determine the Amax for the following molecule: X 382 nm 356 nm 378 nm 371 nm O1. Using the values from the helium emission spectrum, generate a calibration curve on Microsoft Excel or other graphing software. If you are new to Microsoft Excel, specific instructions (with pictures) are given at the end of this lab and will be discussed in lab. a) In Excel, create a column labeled "scale position." This will serve as your x-values. Create another column labeled "wavelength." This will serve as your y-values. b) Enter the values for your scale position and wavelengths into each column. Do not put unit labels with the numbers. c) Create four separate graphs, one each for the four required types of trendlines ("linear", "logarithmic", "exponential", and "polynomial"). Each graph will have the same data plotted but have a different trendline. See the "Curve Fitting Using an Excel Spreadsheet" section at the end of this write-up for additional information about how to make these graphs. i. ALL graphs must conform to the requirements discussed in lab. 1) graph must take…d=2r Asignment sphere is te cur pressue Caertod on it is OKIOS Nm-2 Cmormal ofrtmos pherie pressure)- The sphere is lovseped into the Ocaen To a depth A. initially surrounderd by airsand at ohich the prissure s 2.0x 10t Nm-², The wolume ot The gphere in air is osm3. By haw much does Drd its wolime chenge once it
- i) Discuss the differences between the AES and XPS in terms of principle and information obtained from the spectra.How do you convert 435.835 λ(nm) to v (s-1)In the rotational (microwave) spectrum of CO the separation between lines has been measured to be 115270 MHz. The interatomic distance is: (Hint C has 12 amu, O has 16 amu) 226 pm 56.6 pm 22.6 pm 11.3 pm 113 pm
- 2) The electromagnetic radiation of wavelength 2 shown below is typically used in the UV-Vis, the microwave, and NMR spectrometers. a. 0.5 µm (visible radiation, 500 nm, green color used in UV-Vis); b. 0.5 mm (microwave radiation); c. 0.5 m (radio-frequency radiation used in NMR); a) Calculate photon energy Ephoton in each case. b) What is the name of scientist who proposed numeric constant in the formula?(a) Derive linear density expressions for BCC [110] and [111] directions in terms of the atomic radius R and (b) compute linear density values for these same two directions for tungsten. (a) [110]: i [111]: i (b) [110]: i [111]: i atom/R atom/R 1/m 1/ma solution has a %T value of 51.6% at 550 nm. What us the absorbance of this solution at this wavelenght?
- Prove the following identities. (a) [t, p²] = 2ihp (b) [p, ²] = -2ihâ5) Given the absorbance spectrum shown below, what wavelength of light would you use for nickel(II) ion? Explain your answer. Absorbance 0.8 0.6 0.4 1 0.2 0 350 400 Absorbance vs. Wavelength for Nickel(II) ion 450 500 550 600 650 Wavelength (nm) 700 750 800 850Which of the following statements concerning spectroscopy is correct? A) Concentration of a solution is directly proportional to the % of photons transmitted. B) Salt plates are often used in IR spectroscopic measurements because they are transparent in that region. C) Molar absorptivity is a constant for given species, regardless of concentration or wavelength. D) Fluorescence excitation is usually red-shifted from emission wavelength. E) 2 or more statements are correct. The absorbed energy to enable vibrational level transition falls within which wavelength range A) radio wave B) microwave C) IR D) X-ray E) UV and visible