"Chemistry lab report exo and endothermic reactions" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 39 of 50 - About 500 Essays
  • Better Essays

    Enzymes Lab Report

    • 1657 Words
    • 7 Pages

    Enzymes Lab Report Inroduction In this lab we explore an enzymes activity and how it can be affected by changes to its environment. An enzyme is a protein and is a catalyst to chemical reactions. It helps accelerate reactions by lowering the activation energy‚ which is needed for reactions in cells to progress at a higher rate. Activation energy is the minimum amount of energy needed for a chemical reaction to occur‚ yielding products from a given set of reactants. (Unit 7: Enzymes lab) Products

    Premium Enzyme

    • 1657 Words
    • 7 Pages
    Better Essays
  • Good Essays

    Lab Report

    • 1398 Words
    • 6 Pages

    Roy Levin Bio 11 Lab Dr.Izquierdo Analysis of Macromolecules in Tissue Homogenates of Bos taurusMaterials and Methods The homogenates provided were made by homogenizing tissues in a sucrose phosphate buffer in a 1:20 ratio. The protein concentration in bovine cells was measured by diluting the homogenate with a 1:5 ratio; 50 microliters of homogenate and 200 microliters of water. Then 5 known protein concentration samples which were 0.4‚ 0.8‚ 1.2‚ 1.6‚ 2.0 mg/ml of bovine serum were used to

    Premium Glycerol Glucose Liver

    • 1398 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Enzyme Lab Report

    • 1528 Words
    • 5 Pages

    Title  Effect of Differing pH‚ Temperature‚ and Enzyme Concentration on Catalase Reaction Rate    II. Introduction  Enzymes are used to increase the rate of specific reactions in the body. Catalase‚ a specific enzyme‚  speeds the breakdown of hydrogen peroxide‚ a toxic chemical produced by cells in the body‚ into water and  oxygen (Cain and others‚ 2010). The oxygen can be observed as bubbles coming from the reaction site.  Catalase is found in many living tissues of organisms‚ including chicken liver

    Premium

    • 1528 Words
    • 5 Pages
    Good Essays
  • Powerful Essays

    Chemestry Lab Rates of Reaction (Picture from: http://sciencespot.net/Pages/kdzchem.html) The rate of reaction is how fast or slow a reaction is completed. This is important for factories and chemists all over the world. What happenes during a reaction is atoms or molecules that collide and form new molecules. You can affect this rate of reaction with: temperature of reactants or suroundings‚ surface area of reactants‚ if there is a catalyst present‚ but in theis lab the concentration was changed

    Premium Chemical reaction Reaction rate Measurement

    • 977 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    crystalization lab report

    • 403 Words
    • 2 Pages

    Crystallization: Lab Report Theory/Introduction The purpose of this lab is to understand the concept of purification through crystallization. Crystallization is the process of purifying a substance‚ with the most adequate solvent. The process of crystallization came to be based on the principle of solubility. First‚ we must choose a solvent. The solvent is crucial to crystallization because it’s what will allow impurities to dissolve. Therefore‚ when selecting a solvent it is important that it

    Premium Solubility Chemistry Solution

    • 403 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Lab Report

    • 623 Words
    • 3 Pages

    Inorganic Chemistry 1. A subatomic particle with a single positive electrical charge is protons. 2. A subatomic particle with a single negative electrical charge is electrons. 3. A subatomic particle which is electrically neutral is neutrons. 4. The nucleus of an atom is made up of _protons_ and _neutrons. 5. The number of electrons forming a charge cloud around the nucleus is (pick one of the following) greater than; equal to; smaller than the number of protons in the nucleus of the atom.

    Premium Atom Electron

    • 623 Words
    • 3 Pages
    Good Essays
  • Good Essays

    lab report

    • 2902 Words
    • 11 Pages

    FOOD NUTRITION BASICS LABORATORY REPORT LAB 3 PROTEINS DUE DATE Next FNB Practical NAME (CAPITALS) ______________________________GROUP LETTER___________ This work is the product of my own efforts and has not been copied from any other sources except where full acknowledgement has been given. Signed________________________________________ Student No._____________ Introduction The principle involved in this experiment is denaturation. It involves loss of ordered structure and can be caused by changes

    Premium Protein Egg white Milk

    • 2902 Words
    • 11 Pages
    Good Essays
  • Good Essays

    Lab Report

    • 782 Words
    • 4 Pages

    percent yield of the final product is determined after the synthesis. Procedures: 2.0 mL of 1-bromobutane‚ 3.0 g of sodium benzoate‚ 5.0 mL of water‚ 4 drops of Aliquat 336‚ and a boiling stone were placed in a 50mL round-bottomed flask. The reaction mixture was refluxed for 1 hour and the flask was cooled in a beaker in the water of room temperature. The solid was formed in the mixture and the flask was shaken until it dissolved. The flash was rinsed with 15 mL dichloromethane and it was

    Premium Sodium Chemistry Chemical reaction

    • 782 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Lab Report

    • 1330 Words
    • 6 Pages

    Wave Nature of Light Objective: The purpose of this lab is to investigate interference‚ otherwise known as the diffraction of light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase

    Premium Diffraction Wavelength Light

    • 1330 Words
    • 6 Pages
    Good Essays
  • Powerful Essays

    Lab report

    • 1662 Words
    • 6 Pages

    LSM1102 Lab Report Introduction Transformation is a process which involves plasmid DNA being bound to the cell surface and the subsequent uptake of DNA by the cell (Panja et al.‚ 2008). For artificial transformation of E. coli cells with plasmids‚ plasmid DNA has to be extracted from bacterial cells using the High-Speed Plasmid Mini Kit‚ which is then mixed with competent E. coli cells followed by heat shock and the streaking of transformed cells on two different types of agar plate (LB and LB+ampicillin)

    Premium Plasmid Transformation Escherichia coli

    • 1662 Words
    • 6 Pages
    Powerful Essays
Page 1 36 37 38 39 40 41 42 43 50