"Spectroscopy" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 4 of 50 - About 500 Essays
  • Good Essays

    Chara Dyes Analysis

    • 967 Words
    • 4 Pages

    carriedout for the degradation of fabric dyes from aqueous solution using Chara and Chara beads are discussed below.Various analytical techniques like UV-Vis‚ FTIR spectroscopy were used to confirm the decolorization as UV-Vis spectroscopy; FT-IR spectroscopy and toxicity bioassay were truly used [14]. Also‚ Fourier transform infrared spectroscopy (FT-IR) is widely used to confirm the product obtained after decolorization of dye degradation experiments [15]. It helps in determination of reaction

    Premium Spectroscopy

    • 967 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    List of Chemistry Terms used in daily life α (alpha)‚ β (beta) α- (β-‚ γ-) ray spectrometer α-addition (alpha-addition) α-cleavage (alpha-cleavage) α-decay (alpha-decay) α-effect α-elimination α-expulsion in photochemistry α-oxo carbenes α-particle (alpha-particle) ’A’ value -factorquantity ab initio quantum mechanical methods abatement in atmospheric chemistry abeo- abiological abiotic abiotic transformation absolute activation analysis absolute activity‚ quantity absolute

    Premium Chemistry Mass spectrometry Electron

    • 19197 Words
    • 77 Pages
    Satisfactory Essays
  • Good Essays

    Brass Background The scientific concepts involved in this lab include Spectroscopy‚ Beer’s law‚ Calibration curve‚ concentration‚ and electronic transitions. The main objective of this experiment is to see how the percent composition of brass can be determined to verify the properties influenced by copper and zinc. Brass is a generic term for alloys of copper and zinc. The main technique used in this experiment is Spectroscopy. The three equations used in this lab are: Y = mx + b‚ where y = absorbance

    Premium Zinc Ammonia Sulfuric acid

    • 556 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    english

    • 2666 Words
    • 11 Pages

    Year 12 Chemistry 2011 Student Handbook Table of Contents Errors 2 Significant Figures 2 States of Matter in Equations 2 Revision Hints 3 Equations 4 VCAA 2008-2011 Key Skills 6 Unit 3 VCAA Study Design 7 Unit 3 Timetable 8 Unit 3 Work Set Questions 10 Unit 4 VCAA Study Design 11 Unit 4 Timetable 12 Unit 4 Work Set Questions 14 ERRORS When instruments are manufactured‚ there is a specified uncertainty within which the instrument is designed

    Premium Chemical reaction Titration Analytical chemistry

    • 2666 Words
    • 11 Pages
    Powerful Essays
  • Better Essays

    and sampling techniques Spectrophotometer Spectrophotometry in chemistry is a quantitative measure of the reflection or transmission of material properties as a function of wavelength. It is more specialized than the term electromagnetic spectroscopy which is general in that spectrophotometry deals with near-ultraviolet‚ visible light‚ and near-infrared‚ but doesn’t cover the techniques of time-resolved spectroscopic . Spectrophotometer is used in Spectrophotometry. A spectrophotometer is

    Premium Spectroscopy Infrared

    • 1741 Words
    • 7 Pages
    Better Essays
  • Satisfactory Essays

    Spectroscopy Breakdown

    • 568 Words
    • 3 Pages

    CH 202 Breakdown UV/Vis: Molecules containing π-electrons or non-bonding electrons (n-electrons) can absorb the energy in the form of ultraviolet or visible light to excite these electrons to higher anti-bonding molecular orbitals. The more easily excited the electrons (i.e. lower energy gap between the HOMO and the LUMO)‚ the longer the wavelength of light it can absorb. Conjugation raises the energy of the bonding orbitals and lowers the energy of the antibonding molecular orbital. This

    Premium Molecule Mass spectrometry Atom

    • 568 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    NMR Spectroscopy

    • 4135 Words
    • 17 Pages

    Background NMR spectroscopy is a well established method for structure determination of various organic molecules ranging from small molecules all the way up to large bio-molecules such as proteins‚ DNA and polysaccharides. The chemical environment surrounding each atom as well their proximity to other atoms in a molecule can be studied with various experiments‚ enabling high-resolution 3D-structure determinations as well as verification of the chemical structure. NMR spectroscopy is well suited

    Premium Oxygen Chemistry Atom

    • 4135 Words
    • 17 Pages
    Good Essays
  • Good Essays

    Identification of an Unknown Organic Compound The objective of this lab was straightforward. We were given an unknown compound and we were to perform an IR spectroscopy and as well as NMR spectroscopy. With the IR spectroscopy‚ I was able to name the functional groups I have on my compound and further confirmed my assumptions by looking at the NMR spectroscopy after. The unknown number I was given was number 203. The molecular weight of the compound was 121. From the molecular weight‚ I calculated the molecular

    Premium Methane Oxygen Functional group

    • 477 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Mass Spectroscopy

    • 819 Words
    • 4 Pages

    Module 2 Mass Spectroscopy [pic] [pic] Diagram of a mass spectrometer Stage 1: Ionisation The sample is injected as a vapour and the atoms are bombarded by fast moving electrons. This causes the molecule to fragment into two or more pieces. When a molecule or part thereof fragments‚ one portion would be positively charged while the second portion will be uncharged. All uncharged fragments are ultimately lost in the machine as mass spectrometers only work with positive ions. Stage 2: Acceleration

    Premium Ion Electric charge Atom

    • 819 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Ir Spectroscopy

    • 483 Words
    • 2 Pages

    Callam 1/8 CHEM – 254 – WI -2009 Problem Set #1 – IR Spectroscopy - KEY 1. Which of the indicated bonds absorbs at the higher frequency in an IR spectrum? a. O or OH C=O > C-O b. N or NH C=N > C-N c. H or H C-H sp2 > C-H sp3 Callam 2/8 CHEM – 254 – WI -2009 2. What major IR absorptions are present above 1500 cm-1 for each compound? a. b. O sp3 C-H stretch 2950 C=O - ketone 1715 cm-1 cm-1 c. O sp3 C-H stretch 2950 cm-1 sp3 C-H stretch 2950 cm-1

    Premium Oxygen Atom Molecule

    • 483 Words
    • 2 Pages
    Satisfactory Essays
Page 1 2 3 4 5 6 7 8 9 50