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

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 11 of 50 - About 500 Essays
  • Good Essays

    Link reaction The link reaction takes place in the mitochondrial matrix and its main function is to turn the pyruvate into acetate for the kerb cycle. During the link reaction the pyruvate molecule undergoes decarboxylation and dehydrogenation‚ the enzymes pyruvate decarboxylase and pyruvate dehydrogenase remove the carboxyl group (which becomes a carbon dioxide molecule) and removes the hydrogen atoms from the pyruvate molecule. The coenzyme NAD accepts the two hydrogen atoms and becomes reduced

    Premium Adenosine triphosphate Metabolism Cellular respiration

    • 409 Words
    • 2 Pages
    Good Essays
  • Good Essays

    In this laboratory voltmeters where utilized to take reading of three different electrochemical reactions: Pb/Zn‚ Pb/Cu‚ and Zn/Cu. A salt bridge was placed between two reactions containing metal strips in separate aq solutions. The salt bridge was placed in order to balance the reaction. The voltage measurements for Pb/Zn‚ Pb/Cu‚ and Zn/Cu where .595 V‚ .479 V‚ and 1.072 V accordingly. The values obtained where then used to determine the voltage value for the reduction half. The resulting cell potential

    Premium Electrochemistry Electrolysis Volt

    • 632 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Rate Of Reaction Lab Report

    • 4010 Words
    • 17 Pages

    affecting the rate of reaction‚ PNPP (p-nitrophenyl phosphate) + H20 ? PNP (p-nitrophenol) + H3P04. This reaction is catalyzed by the enzyme phosphatase. Different environments produced different reaction rates as environmental factors affect the efficiency of phosphatase. This is because environmental factors can change the tertiary structure of phosphatase‚ which alters its active site‚ and thus changes its efficiency to catalyze the reaction. We measured the rate of reaction‚ by using a chromogenic

    Premium Chemical reaction Enzyme Chemistry

    • 4010 Words
    • 17 Pages
    Powerful Essays
  • Satisfactory Essays

    Chemistry Labs

    • 4194 Words
    • 17 Pages

    ATLANTIC COLLEGE CHEMISTRY DEPARTMENT (Written by Dr Geoffrey Neuss) CONTENTS Page Introduction 1 Assessment of Practical Work 3 Error and uncertainty 7 Significant figures 8 Title 1. Some common chemical reactions. 9 2. A traditional acid-alkali titration. 10 3. Analysis of aspirin tablets

    Premium Titration Chemistry Assessment

    • 4194 Words
    • 17 Pages
    Satisfactory Essays
  • Good Essays

    Examples of synthesis reactions: 1. Metal  +  oxygen  →   metal oxide EX. 2Mg(s)  +  O2(g)  →    2MgO(s) 2. Nonmetal  +  oxygen  →    nonmetallic oxide EX. C(s)  +  O2(g)  →    CO2(g) 3. Metal oxide  +  water  →    metallic hydroxide EX. MgO(s)  +   H2O(l)  →    Mg(OH)2(s) 4. Nonmetallic oxide  +  water  →    acid EX. CO2(g)  +  H2O(l)  →    ; H2CO3(aq) 5. Metal + nonmetal  →    salt EX. 2 Na(s)  +  Cl2(g)  →    2NaCl(s) 6. A few nonmetals combine with each other. EX. 2P(s)  +  3Cl2(g)  →

    Premium Chemical reaction Hydrogen Chemistry

    • 648 Words
    • 3 Pages
    Good Essays
  • Good Essays

    observe how the change in solvent polarity affects the rate and to determine the kinetics of a solvolysis reaction. In this experiment‚ we used 1-chloro-1-phenylethane in acetone in one reaction with 50% ethanol-50% water and in another reaction with 40% ethanol-60% water. To monitor he rate of reaction‚ we would need the concentration of the alkyl chloride at the beginning of the reaction and at a time t‚ but since we did not determine the concentrations‚ we monitored the rate of formation of

    Premium Chemical reaction Chemistry Acid

    • 487 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    A. Introduction Title: The effect of reading Shakespeare on reaction time Research Question: Does reading a passage of Shakespeare decrease a person’s reaction time while completing a puzzle? One day in class‚ I was reading an interesting article about how people who read and are exposed to Shakespeare and Wordsworth and other renowned writers have better brain activity‚ attention spans‚ and can have more moments of beneficial self-reflection. In the article‚ scientists and psychologists at Liverpool

    Premium Thou Brain Data

    • 1926 Words
    • 8 Pages
    Powerful Essays
  • Satisfactory Essays

    Chemistry Lab

    • 687 Words
    • 3 Pages

    Chemistry 121 Colligative Properties Lab Demonstration of Selected Calculations from Choice I Determination of Kf for Naphthalene To determine the Kf for naphthalene‚ we need to find the difference in the freezing point of pure naphthalene and the solution of 1‚4-dichlorobenzene in naphthalene. Let’s say that we did this experiment‚ used 1.00 g 1‚4-dichlorobenzene in 10.00 g naphthalene‚ and found that the freezing temperature of pure naphthalene was 78.2°C‚ while that of the solution was 75

    Premium Chemistry Atom Oxygen

    • 687 Words
    • 3 Pages
    Satisfactory Essays
  • Better Essays

    | The Chemistry of Natural Waters | Chem 111 Sec 104 | | Hyunjung Hwang | 11/6/2012 | TA: Sarah Boehm‚ Group members: Rachel Hoffman‚ Dan Hirt | Introduction Water hardness is a major part of overall water quality that affects many industrial and domestic water users. Water is considered hard when there are high concentrations of the divalent cations Magnesium and Calcium; water hardness is considered as the sum of both the calcium and magnesium concentrations and expressed as

    Premium Water Calcium Hard water

    • 2778 Words
    • 12 Pages
    Better Essays
  • Good Essays

    From the results recorded it was identified that activity A and C had exothermic reactions‚ whilst activity B had an endothermic reaction. Each of the activities had initially begun with 23.4/8/9oC‚ however‚ within one minute of adding the 2nd reactants‚ the results began showing‚ as seen from the graph. Activity A and C had risen in temperature‚ with A gaining 4oC and in total of 2 minutes having the temperature of 27.9oC along with C increasing by 2.2oC and within 2 minutes of the experiment having

    Premium Chemical reaction Chemistry Reaction rate

    • 500 Words
    • 2 Pages
    Good Essays
Page 1 8 9 10 11 12 13 14 15 50