Determination of the concentration of ethanoic acid in commercial vinegar Introduction: The aim of the experiment was to determine the molarity of ethanoic acid in table vinegar by titrating a sample with alkali sodium hydroxide (NaOH) with a known concentration of 0.1molL-1. The equation of the reaction between ethanoic acid and sodium hydroxide is as follows: CH3COOH + NaOH CH3COONa + H2O When the titrations end point is determined and volumes of reactants are measured the concentration
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From an industrial point of view‚ the uniform distribution (i.e.‚ the gas distributed homogeneously over the entire cross-sectional area of the column) is essential to achieve optimal reactor performance. For instance‚ high quality and efficiency of the chemical reaction can only be achieved through homogenous gas holdup distribution along liquid phase as in bubble column or slurry phase (liquid-catalyst) in a slurry bubble column due to this homogenous gas holdup distribution lead to better interaction
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Introduction: Doing laundry has been a common household activity for years. Whether the technology was beating the garments on rocks by the river or pushing buttons on programmed washing machines‚ this process depends on water and a mechanical action usually assisted by soap or detergent. The purpose of a detergent is to remove ordinary stains and other matter. More often than not‚ the soap/detergent agent holds stains in suspension as they becomes loose during the wash cycle‚ and are subsequently
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Union County Magnet High School for Science‚ Mathematics and Technology Experiment Name Name Lab Partners Teacher Class Date MHS FOS-SDA LAB REPORT RUBRIC | Value(1 – 4 or NG for not graded) | Purpose / Objective | | Expectation(s) | | Materials | | Procedure(s) | | Observations/Data | | Analysis of Data | | Conclusion | | Grammar & Spelling | | Lab Participation | | TOTAL | | | PURPOSE: | The statement of the purpose should explain the reason
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Flame Test Lab Question: When a compound is placed in the flame of a burner‚ what happens to the color of the flame? Hypothesis: When the compound is placed in the flame‚ the flame changes color depending on the chemical compound. When they’re heated‚ they gain energy and changed color sometimes. Safety Requirements for this Lab: Wear goggles at all times. If you want to remove them to write in your notebook you may sit at a table in the center of the room. When you sit down remove them
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Josh Huggard Mr. Neale SBI3U1 November 6th‚ 2014 Spit and Armpit Lab Partners: Kara Washer and Josh Young Abstract This lab shows the use of salivary amylase with strong and weak starch mixtures to break down complex carbohydrates into simpler sugars. This lab was conducted to physically see the breakdown of carbohydrates into simpler sugars (glucose‚ fructose‚ galactose) using the salivary amylase enzyme. This is extremely important to all metabolic functions in the human digestive system. It
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Estimation of Duckweed Geometric Population Density Phosphate Depletion By Ana Rosina Alarcon University of Texas at El Paso Department of Environmental Science Instructor: Gebregiorgis Alay G. Introduction Duckweed is a small aquatic plant that is able to grow rapidly‚ making it the ideal specimen for our experiment. It is hypothesized that altering the amount of light received by duckweed will alter its photosynthetic rate. It is predicted that a lower light intensity will
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Microbiology Laboratory Report Identification of Unknown Bacteria 03/10/05- 04/01/05 Authors: Richard Hendricks‚ Jessica Prebish; NMU Abstract: Broth culture 16 was randomly selected by our group and subjected to qualitative tests for taxonomic identification. The culture did appear homogenous throughout the testing period and is currently retained by Northern Michigan University’s department of Microbiology. We suggest that culture 16 is an example of Escherichia coli. Background: Techniques
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LAB REPORT Introduction: In a chemical change‚ the identities of substances change and new substances form. In an equation the substances on the left are the reactants. The substances on the right are the products. In this experiment the objectives are to observe evidence that a chemical change has taken place. Infer from observations that a new substance has been formed. Identify and record observations that show energy is involved in chemical change observe the color‚ solubility of some substances
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· Alpha-1 level test – determines the amount of Alpha-1 Antitrypsin in a persons’ blood. To confirm the severity of the disease other tests may be done such as‚ chest x-rays and Computerized Automatic Tomography (CAT) scans. The chest x-ray examination may reveal a barrel-shaped chest. Also‚ listening to the chest with a stethoscope
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