CHM130 Lab 2 Measurements: Accuracy and Precision A. Data Tables (36 points) Place your completed data tables into your report here: (original Data Data Table 1 Measurement Original Data Calculated Data Length of aluminum plastic packet 5 cm 50 mm Height of aluminum plastic packet 6.5 cm 65 mm Temperature of faucet water 26 degrees C 78.8◦ f Temperature of ice water 7 degrees C 44.6◦ f Volume of water in 10-mL graduated cylinder 7.1 ml 0.0071000L Volume
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Analysis of Essential Oils using Gas Chromatography Lyndon Justin T. Guzman Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City Date Performed: February 2; February 4‚ 2011 Date Submitted: February 18‚ 2011 Abstract The purpose of this experiment is to isolate the essential oil from eucalyptus leaves as a pure compound; moreover‚ the components of the essential oil‚ camphor and limonene‚ will be then separated using gas chromatography technique‚ identify the components by
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will be testing these plants molecular and structural traits to see which one is closely related to the Botana Curus ‚ using microscopes simulated electrophoresis and much more. MATERIALS: The materials we used : 1) The Lab packet 2) Foam cups 3) Chromatography paper 4) Pen or Pencil 5) Microscope slides for species x ‚y ‚z ‚and the Botana Curus 6) Microtip dropper 7) Plant extract 8) Microscope 9) H2O Procedures:
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A. What is the name of the pigment that captures light? Chlorophyll B. Why does the pigment appear green? It absorbs other colors of light such as red and blue‚ so in a way the green light is reflected out since the pigment does not absorb it. 2. List two variables besides the wavelength (color) of light which might affect the rate of food production in plants. Light intensity and carbon dioxide 3. Why is chlorophyll important for all biological life? It is necessary for photosynthesis which
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seen at the top of the solution. Lead Acetate Cloudy solution with small specks of white precipitate. Ice cold ethanol Cloudy at the bottom and about 0.5 cm of the top of the solution was clear. Table 4: The results of Gel Filtration Chromatography Eluate Component Volume collected in mL First Blue dextrin 3.00 Second Brown cytochrome 7.00 Third Clear phosphate buffer 5.00 Table 5: The result of Electrophoresis of Amino Acids Distance
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The Chromatography of Food Dyes and determination Of the Dyes Present in M&M Candies Procedure To complete this lab‚ I first mixed the solvent solution consisting of the proper ratio of water‚ salt‚ and isopropyl alcohol in a Pyrex measuring cup. I then prepared my chromatography papers for 2 trials by drawing‚ with a pencil‚ the appropriate lines and labels. Using a toothpick‚ I added the color to the paper‚ and then repeated until the color was strong. I repeated this step several more
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Moment of Inertia and Rotational Motion Garret Hebert PHY 2311 Tues 1:00 garret.hebert@hindscc.edu Abstract: During this lab we will study what rotational Inertia is and how different shapes of masses and different masses behave inertially when compared to each other. We will specifically study the differences of inertia between a disk and a ring. We will use increasing forces to induce angular acceleration of both a disk and a ring of a certain mass. We will then then measure the differences
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First‚ the buffer was prepared by using the formula as follows: Figure 1: Calculation for prepare 0.1 M potassium phosphate buffer at pH 6 3.4007g of potassium phosphate was weighed and placed in 300 mL beaker. Then‚ 125 mL of water was added into the beaker that contained potassium phosphate. The mixture was dissolved using the stirring rod‚ and then the magnetic stirring bar was placed in the beaker for further dissolve when measuring the pH. The pH meter was used to measure the solution
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Simple Distillation‚ Gas Chromatography: Preparation of Synthetic Banana Oil Introduction This experiment gave us the opportunity to work with a variety of new procedures as well as practice procedures that are new to us within the past few weeks of labs. Within the context of the scenario‚ we find that a distilling company that markets a popular banana liqueur is having problems. The banana plantation that they use to create their banana extract was hit hard by a hurricane and their reserves
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Micro-extraction of urine and/or stomach contents and analysis by TLC Abstract Thin Layer Chromatography (TLC) is one of the oldest chromatographic techniques used for the identification of compounds and for determination of the presence of trace impurities. The aim of the experiment was to determine two unknown samples (X and Y) by comparing results to the known standard drugs‚ of which there was five‚ using a specific TLC method. The same technique was used for the determination of
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