BACK TITRATION- DETERMINATION OF THE CARBONATE CONTENT IN GARDEN LIME NAME: OSEI BONSU ERIC ID: 3906409 EXPERIMENT: I.2.2.1.
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Bubble Inside a Bubble Materials • • • • • • • • Granulated sugar (we had our best results using Imperial Sugar and Dixie Crystals) Dish soap Water Tablespoon Scissors Pipette Cup Adult supervision Bubbles form because of a combination of water’s hydrogen bonds and the oily film you can see shimmer in the light. The oily film you see is actually two separate layers of soap attached to‚ and surrounding‚ hydrogen-bonded water. Solar Oven S’mores Materials • Pizza box • Two clear sheet protectors
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Introduction: During this laboratory exercise will identify by the graph given which is isotonic‚ hypotonic‚ or hypertonic. The kidneys are a pair of fist-sized organs located outside the peritoneal cavity on each side of the spine. The kidney is a highly specialized organ that maintains the internal environment of the body by selectively excreting or retaining various substances according to specific body needs. The process of urine formation and adjustment of blood composition involves three
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potatoes‚ considering the process of osmosis METHOD (see ‘Potato Osmosis’ – exercise document) Table of NaCl-H2O Dilutions NaCl Solution / ml ±1 100 75 50 25 0 Distilled H2O/ ml ±1 0 25 50 75 100 NaCl Concentration/M 1.00 0.75 0.50 0.25 0.00 Official Timeframe of Experiment Insertion Time: 29 November‚ 2007 – 8:54 am Extraction Time: 30 November‚ 2007 – 9:40 am Legend for Potato Differentiation Potato Mark Potato 1 Vertical line Potato 2 Horizontal Line Potato 3
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resting potential based on the efflux of potassium ions (as demonstrated in Activity 1). What passive channels are likely found in the membrane of the olfactory receptor‚ in the membrane of the Pacinian corpuscle‚ and in the membrane of the free nerve ending? Chemical and pressure channels. 2. What is meant by the term graded potential? Graded potential are changes in the transmembrane potential that cannot spread far from the site of stimulus. 3. Identify which of the stimulus modalities
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Lab Eight: Identification of HydrocarbonsWebGoogle+GmailDocsmore ▼ All DocsEdit Orgo Chem Lab 8 Lab Eight: Identification of Hydrocarbons Organic Chemistry 311 Abstract: Unknown hydrocarbon K was identified by using purification‚ determination of boiling point by using the capillary tube technique‚ the calculation of density and obtained refractive index value from the Abbe-3L refractometer. The density was not useful due to an error of the machine but the boiling point and refractive index
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LAB ONE: Exercise 4 – Endocrine System Activity 1: Metabolism and Thyroid Hormone Part 1: 1. The normal rat had the fastest basal metabolic rate. 2. The metabolic rates differed between the normal rat and the surgically altered rats because the surgically altered rats didn’t have a thyroid or pituitary gland and therefore‚ the normal rat had a faster basal metabolic rate. The results turned out to be the way I predicted them to be. 3. T3 and T4 would be missing in the animal’s blood
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cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
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federal government the most important factor inhibiting the progress of Native Americans in achieving their civil rights between 1865 and 1992? In this essay I am going to analyse whether it was the policy of the federal government which caused the progress of Native Americans to deter in achieving their civil rights between 1865 and 1992 or whether other factors like the lack of unity‚ discrimination and charitable organisation played a part in inhibiting their progress within this period. First
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prevent and treat infectious diseases. Pasteur and others observed that infecting an animal with Pseudomonas aeruginosa protected the animal against Bacillus anthracis. Later‚ the word “antibiosis” (against life) for this inhibition and called the inhibiting substance “Antibiotic”. As researchers found out more and more about these chemicals they were able to discover that antibiotics are chemicals or natural substances such as bacteria‚ fungi‚ as well as synthetic drugs; that inhibit or kill microbes
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