"Berlese funnel" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 38 of 50 - About 500 Essays
  • Good Essays

    Cations and Anions Reaction Introduction: This experiment seeks to explore different chemical reactions conducted in the lab. A cation is defined as positively charged ions‚ which are K+ and Pb2+ in this experiment‚ and an anion is termed as negatively charged ions‚ which are CrO4 2- and NO3 2-. The major objective of this lab experiment was to examine the reaction between cations and anions‚ as well as observing‚ and documenting the chemical reactions. We will be demonstrating the reaction between

    Premium Chemistry Chemical reaction Titration

    • 878 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Caproic Acid Synthesis

    • 1644 Words
    • 7 Pages

    Introduction In this lab‚ caproic acid was synthesized in a multi-step process that involved the synthesis of three intermediates – diethyl n-butylmalonate‚ potassium n-butylmalonate‚ and n-butyl malonic acid respectively. An IR was used to characterize the starting material‚ n-bromobutane‚ and the first intermediate‚ diethyl n-butylmalonate; while IR and NMR were used to characterize the final product‚ caproic acid. Reactions‚ Mechanism and Theory Caproic acid a.k.a n-hexanoic acid is a carboxylic

    Premium Distillation Carboxylic acid Alcohol

    • 1644 Words
    • 7 Pages
    Powerful Essays
  • Powerful Essays

    Extraction of Caffeine from Tealeaves Perez‚ Albert Solomon K.*; Quiambao‚ Marie Angela C;.Pascua‚ Hanna Harriette R.; Patricio‚ Maria Roxanne DC.; 2-Chemistry‚ Department of Chemistry‚ College of Science University of Santo Tomas España St.‚ 1015‚ Manila Abstract Caffeine is soluble in both water and organic solvents‚ solid-liquid extraction and liquid-liquid extraction were used in the experimentation process. Caffeine was extracted using hot water‚ however‚ due to its

    Premium Solubility Green tea Tea

    • 1798 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    Google Analytics 1

    • 725 Words
    • 3 Pages

    References: Google Analytics – Features Retrieved from http://www.google.com/analytics/features.html Google Analytics – Funnel Retrieved from http://www.google.com/support/googleanalytics/bin/answer.py?answer=55594 Google Adwords – Return on Investment Retrieved from http://adwords.google.com/support/aw/bin/answer.py?hl=en&answer=14090 Google Adwords – Overview Retrieved

    Premium Google World Wide Web

    • 725 Words
    • 3 Pages
    Good Essays
  • Best Essays

    management approach. New York‚M.E. Sharp Inc Kotler‚P.‚Armstrong‚G.‚Wong‚V.& Saunders‚J.(2008).Principles of marketing (5th edition). Harlow‚ Pearson education England Measuring media effectiveness : Comparing media contribution throughout the purchase funnel.(2006).New York‚Magazin publishers of America Reid‚L.‚Whitehill King‚K.‚Martin‚H. & Soh‚H.(2005).Local advertising decision makers’ perceptions of media effectiveness and substitutability. Journal of media economics‚18(1)‚35-53 Riesenbeck‚H.& Perrey

    Premium Advertising

    • 2184 Words
    • 9 Pages
    Best Essays
  • Good Essays

    ATQ 2

    • 367 Words
    • 2 Pages

    1.) How does the use of fluted filter paper hasten filtration? Why is it advisable to place a small piece of wire between the funnel and the mouth of the flask during hot filtration? The way the fluted filter paper is folded hastens filtration because it increases the surface area of the filter paper‚ giving the solution more area to go through. A piece of wire is placed to avoid build-up of pressure‚ and easily pour the solution without spilling. 2.) Enumerate 2 techniques that can help

    Premium Solvent Filter paper Ethanol

    • 367 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    distilled water was added. The mummion mud then had to be dissolved in the distilled water by stirring leaving the sand and iron (III) oxide. It then has to be filtered. After folding we placed the fluted filter paper into a funnel‚ the mud was placed into the top. The funnel was then placed on to a conical flask. After some time the mud will filter through in the form of a liquid. This is then put into a evaporation dish. Then the dish placed this evaporation dish on top of the tripod over a lit

    Premium Water Filters Evaporation

    • 343 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Synthesis of Aspirin and Tylenol Kyla Wykoff Abstract Aspirin and Tylenol were synthesized by means of crystallization‚ recrystallization‚ and melting point determination. Synthesis produced significantly high percent yields for aspirin‚ however‚ produced extremely low and impure percent yields for Tylenol. A second group was also used to compare results and errors‚ in which they too were also producing extremely low percent yields of Tylenol. Therefore‚ error was based on the specific protocol

    Free Aspirin

    • 1206 Words
    • 5 Pages
    Good Essays
  • Good Essays

    After the 10ml of dichloromethane was added to the separatory funnel‚ two layers began to form. The top layer is the organic layer and contains the caffeine while the aqueous is at the bottom. The dichloromethane has a density of 1.326g/cm so it is denser than water and thus is at the bottom of the funnel. After the distillation ‚ the Bunsen burner was used to sublimate the caffeine as the heating mantle and the water bath would take

    Premium Water Chemistry Oxygen

    • 349 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Sarah Muhs ID: 11325862 Nitration of Methyl Benzoate Post Lab: 1. Is the ester group of your starting material electron donating or withdrawing? Support your conclusion with resonance drawings. The ester group‚ CO2CH3‚ of the starting material was electron withdrawing. 2. Draw the mechanism of the nitronium ion reaction with the methylbenzoate. 3. Why does water stop the reaction? Water stops the reaction because of Le Châtlier’s principle. Since water is a product‚ when more is added it drives

    Premium Sulfuric acid Nitric acid Water

    • 768 Words
    • 3 Pages
    Good Essays
Page 1 35 36 37 38 39 40 41 42 50