Lab report for Experiment #2: Extraction Your Name: Name of TA: Lab Partner’s Name: Lab Section: Title: Experiment #2: Extraction Purpose: What is the purpose of this lab? In your OWN words! Observations: Weighed out 3.2568 grams of chemical mixture that was yellow in color. Dissolved dry chemicals in 38 ml CH2Cl2 with gentle heating. Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse‚ poured solution into sep funnel. Added 15 ml 3 M
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the heart is pumped to the body’s cells (the systemic circuit) for gas exchange. The deoxygenated blood is returned to the right side of the heart. Strenuous exercise causes a dramatic increase in blood flow to skeletal muscles that depend on the red blood cells to bring them the oxygen necessary for cellular respiration ‚ which is the quantity of blood pumped from one’s heart and clinically measured per minute. There are several points in the body where the heart rate may be taken‚ but it is read
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plastic cover slip iodine stain pipette tweezer paper towel strip small beaker Salt solution STEPS 1. Carefully remove the outer layer of cells (epidermis) of a piece of red onion. 2. With the slide on your desktop‚ place a drop of water on the center of a clean dry slide. 3. Using the tweezers‚ place the onion in the middle of the drop. 4. While holding the cover slip upright‚ carefully place one edge of the cover slip
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Unknown Lab Report Unknown Organism #6 Ann Le (Phuoc) May 6‚ 2010 Dr. Carrington Microbiology Lab- MW 12:50 Le 1 I. Introduction My unknown organism #6 is Morganella morganii‚ which is a gram-negative bacillus rods commonly found in the environment and also in the intestinal tracts of humans‚ mammals‚ and reptiles as a normal flora. (3‚ 5) This bacterium Morganella morganii‚ was first discovered in the 1906 by a British bacteriologist named H. de R. Morgan. (2) Despite its wide
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2002‚ and J.R. Stroop‚ the first person to publish its significance in English in 1935(Stroop‚ 1935). In the Stroop model‚ color-words are variously presented in contrasting ink colors‚ also known as incongruent-colored words; for example‚ the word "red" when presented in blue ink. The word ‘Blue’ when presented in blue ink‚ on the other hand is an example of a congruent-colored word. Because the left hemisphere has demonstrated an overall advantage relative to the right hemisphere on most verbal tasks
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pH levels are. Materials and Methods For the first part of our exiperiment we used the Red Cabbage Indicator. Red cabbage indicator is made by boiling red cabbage to extract the pigments. The red cabbage is filled with anthocyanins‚ therefore it can be used for an indicator. The color of the red cabbage indicator changes with different pH levels. We needed a set of standards to compare our red cabbage and water mixtures with. We used seven different test tubes and put one type of pH level in
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BioLab3 Lab Report 5 Enzymes Student Name: Cooper Lyon I. Enzyme Structure and Function EXERCISE 1 – Preparation of an enzyme activity standard At five minute intervals over the next fifteen minute period‚ record the color intensity of the solution of each test tube. Time (min) Tube S1 Potato Extract + Catechol Tube S2 Potato Extract + Water Tube S3 Catechol + Water 0 Shade of Yellow Clear/Milky Clear/Milky 5 Shade of Yellow Clear/Milky Clear/Milky 10 Orange Clear/Milky Clear/Milky 15
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6 November 2012 SUBJECT: Lab Report Analysis This memo proposes the observations and claims I collected from reviewing three different lab reports. Three fields of study are composed within this memo that includes Electrical Engineering‚ Environmental Engineering‚ and Petroleum Engineering. “Electrical Filters‚” (Electrical)‚ written by Joe Schmoe‚ is a lab report made by a student at a university. The College Board produced an environmental lab report named‚ “Monitoring Air Quality‚”
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Experiment 21: Salmonella and food contamination Purpose /Objective Objective: To test salmonella in spinach sample over five lab periods. Food contamination of salmonella can cause serious illness. Only small numbers of salmonella need to be found for a food product to be considered contaminated. Tests used Pre-enrichment- lactose broth Selective enrichment broth- with Tetrathionate Brilliant Broth Selective Plating- Brilliant Green Agar Isolation of salmonella conformation- is preformed
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Carbohydrate Lab Report Introduction Qualitative identification of a substance is of significant importance in chemistry. Physical constants such as melting points have traditionally been used by organic chemistry for identification of unknown compounds. As for inorganic substances‚ the precipitation of a solid‚ results of a flame test‚ or the formation of a colored substance could all be keys to identifying a sample. Chromatography and spectra are amongst the newer techniques
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