"Nucleophile" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 13 of 28 - About 271 Essays
  • Satisfactory Essays

    Arginase Lab

    • 497 Words
    • 2 Pages

    Name: Fabiola Gonzales ID#: 810004692 Lab Partner: Onecia Alexander Date: Friday 23rd October 2015 Theory: Arginase is an enzyme with the E.C. number 3.5.3.1 (Worthington 2015). This details it as a hydrolase enzyme that catalyses the cleavage of bonds through the addition of water. For this experiment‚ we pay close attention to the reaction where arginase catalyses the hydrolysis of arginine to ornithine and urea. This reaction is a part of the urea cycle and occurs in mammalian livers and sometimes

    Premium

    • 497 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Once it loses the chloride‚ a carbocation is formed and the water acts as the nucleophile to bond the oxygen to the carbocation. Bromothymol blue indicator changes color depending on the pH of a solution. The indicator would change from blue to green to yellow. Using this indicator‚ we were able to measure the rate of formation of HCl

    Premium Chemical reaction Chemistry Acid

    • 487 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    concentration of hydrobromic acid. The sulfuric acid protonates the hydroxyl group of n-butyl alcohol so that water is displaced instead of the hydroxide ion OH-. The acid also protonates the water as it is produced in the reaction and deactivates it as a nucleophile. Deactivation of water keeps the alkyl halide from being transformed back to the alcohol by nucleophilic attack of water. The reaction of the primary substrate continues via an SN2 mechanism. Introduction Halogenoalkanes‚ also known as haloalkanes

    Premium Chromatography Carbon Sulfuric acid

    • 1598 Words
    • 7 Pages
    Powerful Essays
  • Better Essays

    pearl structure

    • 1574 Words
    • 5 Pages

    Persian Gulf Pearl History Since the past‚ persian Gulf was one of the greatest source for fine and perfect pearls. Persian Gulf oysters (Pinctada margaritifera‚ Pinctada radiata) were collected for their mother-of-pearl‚ which was used as an inlay material in ancient Egypt as early as the sixth dynasty (c 3200 BC). The pearls of the Persian Gulf were natural created and collected by breath-hold divers. The secret to the special luster of Gulf pearls probably derived from the unique mixture of

    Premium

    • 1574 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    Organic Compound Analysis

    • 504 Words
    • 3 Pages

    Lab 6: Organic Compound Analysis Isabella O’Toole CHY 116 Friday 1:15-4:00 Lab Conducted on 4-12-13 and 4-19-13 4-26-13 This lab was conducted in order to determine the chemical composition of an unknown organic acid. A known mass of acid was dissolved into 30mL of either water or methanol (depending on solubility) and titrated with standardized sodium hydroxide. Data from this allowed the molar

    Premium Acid Sodium hydroxide Melting point

    • 504 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Synthesis of Acetanilide

    • 540 Words
    • 3 Pages

    losing a proton) using Acetic Anhydride as a source of an “Acyl” group to form an Amide. The Synthesis of Acetanilide (an Amide) through a Nucleophilic Acyl Substitution (addition / elimination) reaction between Aniline (an Amine) is acting as the Nucleophile and an Acyl group from Acetic Anhydride acting as the Electrophile. The Mechanism: The desired product is isolated from its impurities by differences in solubility. Soluble impurities remain in the cold solvent after recrystallization. The

    Premium Amine Oxygen Acetic acid

    • 540 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Electrophilic Aromatic Substitution Objective The objective of this experiment was to illustrate electrophilic aromatic substitution by synthesizing p-nitroanilide (as well as ortho) from acetanilide by nitration. The para form was separated from the ortho form based on solubility properties using recrystallization techniques. Synthetic equations: Physical Properties & Hazards of Reagents/Products: (all taken from Sigma-Aldrich website) Acetanilide MM = 135.16 g/mol Melting point =

    Premium Electrophilic aromatic substitution Benzene Sulfuric acid

    • 1646 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    Bromo

    • 650 Words
    • 3 Pages

    Scheme    Br Br HNO3 / H2SO4     Mechanism    The first step is the formation of the NO2 from the nitric acid:    NO2 1.3) O O S N HO O O HO O N + H2O + HSO4- OH O     The second step is the nucleophile attack of the bromobenzene on the NO2. The  temperature is moderated to avoid the formation of ortho and meta products:    Br Br O + H+ N O   NO2 2. PROCEDURE    2.1) Reaction    In a 100mL twin‐neck bottom fl

    Premium Sulfuric acid Solubility Nitric acid

    • 650 Words
    • 3 Pages
    Good Essays
  • Good Essays

    In this experiment‚ the cyanide ion served three purposes: first of all‚ it acted as a nucleophile‚ then it stabilized the intermediate carbanion‚ and in the end functioned as a leaving group. The Benzoin produced was then in turn purified and used to synthesize Benzil in the next experiment through Copper (II) ion oxidation. The Benzil was

    Premium Chemical reaction Chemistry Alcohol

    • 608 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Ricin is a toxic protein found in castor oil plant seeds. The toxicity of Ricin has been known for centuries and was even used by the KGB government to assassinate Georgi Markov‚ a famous journalist who openly criticized the Soviet Union’s communist regime. The toxicity of ricin is caused by its ability to deactivate ribosomes and halt protein synthesis. Therefore‚ Ricin is categorized as a ribosome inactivating protein (RIP). There are two types of RIPs: type I and type II. Type I RIPs are usually

    Premium Fungus Nutrition

    • 682 Words
    • 3 Pages
    Good Essays
Page 1 10 11 12 13 14 15 16 17 28