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Free research essays on topics related to: absorbance

11 results found, view free essays on page:

  • H 2 O Rate Of Reaction
    1,374 words
    Title: The Effects of Substrate Concentration and Temperature on the Rate of Hydrolysis of the Enzyme Trypsin. Abstract: Quantitative measurements can relate both temperature and substrate concentration to the enzymatic activity of trypsin. By analyzing the data, it is suggested that at BAPNA concentrations below those corresponding to Vmax are rate limiting, as less active sights are available for adhesion. The values of Vmax and Km relate a temperate catalytic efficiency of trypsin. The temper...
    Free research essays on topics related to: degrees celsius, rate of reaction, h 2 o, 1 ml, peptide bonds
  • Parts Per Million Graduated Cylinder
    1,007 words
    Concentration of Food Colors in Artificially Colored Beverages Fake Hall rm# 405, SUNY Cobleskill, NY This experiment was performed to investigate and determine the concentration of food coloring in Food Club Brand Cranberry-Ginger Ale. Methods used in the experiment include; comparing the color of the sample to the 3 controls (at 5 ppm, 10 ppm and 15 ppm) by an approximate assessment with just simple eyesight, and the use of a spectrophotometer. The color of the sample of Food Club Ginger Ale s...
    Free research essays on topics related to: parts per million, 5 ml, graduated cylinder, dye, distilled water
  • Reached Lambda Max Solution Reached Lambda Max Concentration
    424 words
    Our Laboratory project was conducted in order to determine the phosphate concentration present in three brands of colas in the form of phosphoric acid. The concentration of phosphate in colas is important due to its ability to sooth an upset stomach, but also block absorption of calcium and lead to Osteoporosis. In the first phase of our investigation, we analyzed a series of colored solutions using a Spectronic 20. The second phase of our experimentation lead us to the investigation and analysi...
    Free research essays on topics related to: lambda, concentration, phosphate, first phase, max
  • Paper Towel One Person
    501 words
    Paper Towels On Trial Have you ever wondered what the best brand of paper towels is? Or what "the best" actually means? Well, our group adventured out to find "the best" paper towel! We tested seven different brands of paper towels. We did 3 different controlled experiments to collect data. The data will help to determine the best paper towel out of the seven brands we tested. The brands we tested were: Bounty, Scott, Viva, Home Best, Strong n' Thirsty, Good Day, and Green Forest. The materials ...
    Free research essays on topics related to: brands, paper towel, towel, one person, towels
  • Three And Four Reaction Rate
    859 words
    Title: Examining Some Properties of the Enzyme -amylase In this experiment a deeper meaning in the catalysts of reactions is studied. Catalysts accelerate chemical reactions without permanently changing the reaction. Enzymes, catalysts in biochemical reactions, are globular proteins which lower the activation energy needed to begin a reaction and therefore increase the rate at which efficient reactions can occur. Proteins (henceforth enzymes) are complex molecules made of amino acids in polypept...
    Free research essays on topics related to: concentration, enzyme, three and four, reaction rate, high temperatures
  • Test Tube M L
    1,232 words
    Lab Report 1: Separation of Proteins Abstract/Summary: "Proteins account for more than 50 % of the dry weight of most cells, and they are instrumental in almost everything organisms do" (Campbell, 1999). The significance of proteins to the continuation of our biological systems is undeniable, and a study of how to quantify proteins seems an appropriate introduction to our studies of biology. In order to study proteins we must first know how to separate then quantify the amount using basic princi...
    Free research essays on topics related to: protein, absorbance, test tube, 1 b, m l
  • Test Tubes Cell Membranes
    1,411 words
    Chemical Stress On The Tonoplast Of Beta Chemical Stress On The Tonoplast Of Beta Vulgaris Taproot Cells. Abstract This is an experiment on how chemical stress effects cell membranes, specifically the tono plast of Beta vulgaris taproot cells. This experiment involved the treatment of the aforesaid cells with different concentrations of an acetone solution, and testing the resulting solution for absorbance of light by beta cyanine, using a spectrophotometer. It had been hypothesized that the hig...
    Free research essays on topics related to: cell membranes, test tubes, figure 1, five minutes, ref 1
  • H 2 O Value Of N Method
    494 words
    Complex Ion Composition By Jobs Method By Kelly Miller Smith, III Inorganic Chemistry Dr. Virgil Payne 1: 00 lab Objective The objective of this experiment is to study the continuous variations method that is used to determine the composition of the solution Ni 2 + ethylene diamine complexes. Background To examine the interaction between two molecules in solution without isolating the compound Jobs method is used. Although unstable compounds tend to be generated, this is not a reflection of weak...
    Free research essays on topics related to: complexes, h 2 o, metal, composition, equilibrium
  • Distilled Water 100 Ml
    358 words
    Determining Solution Concentration Using A Spectrophotometer Essay, Determining Solution Concentration Using A Spectrophotometer Determining solution concentration using a spectrophotometer: Chemicals and apparatus: Spectrophotometer with equipment 4 flasks, 100 ml each Cu 2 + (actually Cu (NH 3) 42 + but the object of research is only the Cu 2 +) Distilled water Lab: One way, and a quite simple way to determine the concentration of a solution is to use a spectrophotometer, an apparatus that emi...
    Free research essays on topics related to: absorbance, concentration, distilled water, 100 ml, spectrophotometer
  • X 10 S 1
    1,147 words
    Fluorescence Study of the Kinetics of Energy Transfer Between Dyes 1. Introduction Coumarin 1 and Sodium fluorescein are two dyes which absorb and emit light in the visible region. By using a spectrophotometer we are recording an absorption spectrum and then determining the molar decade absorption coefficients, which will be used later to interpret and analyse the fluorescence spectra. For fluorescence spectra, there are two kinds, the excitation and the emission spectrum. The excitation spectru...
    Free research essays on topics related to: m 2, s 1, transfer, spectrum, x 10
  • 20 Ml Y 2
    223 words
    Purpose: The purpose of this lab was to gain the quantitative measure of the color difference between Transmitance and absorbance in 8 different samples of water containing varying amounts of iron in a range between 5 - 100 ppm, so that we know which samples where except able for drinking. Data: The Mystery Solution had a transmittance of 6 Calculations 80 ppm (25 ml) = 20 ml 100 ppm This means that in order to get 25 ml of 80 ppm solution 20 ml of water must be added to the previous solution. A...
    Free research essays on topics related to: 20 ml, y 2, concentration, mystery, absorbance

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