Processing my findings: My hypothesis was that garlic decreases the growth of bacteria substantially‚ which my experiment and results have proven to be correct. In order to prove my hypothesis correct‚ I carried out an experiment where I grew bacteria on 14 different agar plates and placed garlic on seven of the agar plates and then had no garlic present in the other seven agar plates. All 14 agar plates were kept under the same conditions while the bacteria colony was growing in order to ensure that all
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Using a Dumas method‚ you are asked to identify the unknown pure liquid by comparing the molar masses of the given possible substances (ethanol‚ methanol‚ isopropanol‚ acetone). Introduction Dumas Method allows us to measure the molar mass of the substance‚ using the Ideal Gas Law. The Ideal Gas Law‚ PV=nRT‚ explains the behaviour of the gases that are near 100kPa and in the room temperature. This equation shows the product of the pressure(P) and volume(V) equals to the product of the number of moles(n)
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QUEENSLAND ACADEMIES FOR SCIENCE‚ MATHEMATICS AND TECHNOLOGY International Baccalaureate Diploma Program Extended Essay in Biology Is Tea-tree Oil effective in controlling and minimising the growth of the Escherichia coli Bacteria? A study of the effectiveness of a Natural Antiseptic Candidate Name: Lois Adrienne Dianne Soriano Dulay Candidate Session Number: 003072-032 Word Count: 3997 Supervisor: Ms Kate Barry Date of Submission: 25th July 2011 Acknowledgments Firstly I would
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Tuan Tai 1 Duong Tran Tuan Tai Professor Pham Quoc Loc ENGL - 1302 17 September 2014 Some nice quotes from unknown authors In my view‚ everyone love reading always notes their favorite quotes for their life’s guideline. To me‚ I am not really love reading but I love collecting the nice quotes. The quotes bring many meaningful‚ some are evident but some are vague. In addition‚ I also like to collect quotes from the Internet because I do not need to read whole a book and some of them never appear
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to cocoa bottom and an unknown girl notes to help on coursework. An unknown girl A traditional indian market scene‚ set in the evening‚ it was to hot to have markets in the day‚ lit up with neon lights She tries to capture the moment‚ she is getting involved in the culture by having her hand hennad. It is a darker shade of your own skin‚ suttle. She is watching this girl ‘icing my hand’(verb(icing)) ‘in the evening bazaar for a few rupees’ india money Unknown girl refers to the lady
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Standardization and Titration of an Unknown Organic Acid Overview: Methods for counting the number of molecules in a sample is a major emphasis of laboratory work. In this experiment we will use the method of titration to count the number of acid molecules in a solution. Measuring mass is a relatively easy procedure to do in the lab (although a balance is expensive). Counting the number of particles requires more effort. Molecular counting can be done by setting an unknown amount of a substance equal to
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Classification for Functional Groups Alcohols Lucas test (Differentiates primary‚ secondary‚ and tertiary alcohols) Reagent: ZnCl2 in conc. HCl Observation: Rate of reaction (tertiary alcohol> secondary alcohol> primary alcohol) Procedure: 2mL Lucas Reagent in test tube+ 3-4 drops of alcohol‚ stopper‚ shake vigorously‚ NOTE time required (less than 10m mins only) to form an emulsion or separate layers. Oxidation (Confirms if alcohol is oxidizable: presence of H in C-OH bond) Reagent:
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determined that Unknown A‚ B‚ C‚ and D are to be identified as the Sprite‚ burger‚ fries‚ and bun‚ respectively. Each Unknown provided evidence that we eventually used to match to each element of the meal. Along with the lab data‚ our prior knowledge also led us to our results. We were able to determine that Unknown A is the Sprite due to the fact that every test was negative except for simple sugars‚ a macromolecule that the majority of sodas contain. We determined that Unknown C were the
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College of Science‚ University of Sulaimani‚ Kurdistan region‚ Iraq (Accepted for publication: November 19‚ 2008) ABSTRACT The aim of this study was to investigate the activity of (28%) ethanolic extract propolis (EEP) of [Bazian‚ Pshdar‚ Sharbazher‚ Khormal‚ Kanakawa and Sulaimani (city center)] against (Staphylococcus aureus‚ Staphylococcus epidermidis‚ Escherichia coli‚ Pseudomonas aerugenosa‚ Klebsiella pneumoniae‚ Proteus mirabilis and yeast Candida albicans). Two methods were employed
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Thin Layer Chromatography of Unknown Samples and Paprika By: Uyen Huynh Date: June 18‚ 2014 Lab Partners: Philip Murray Professor and section: M. Pandey‚ CHM2210L.601 Data: Analysis of Drug Store Items Knowns Rf Values Aspirin .91 cm Acetaminophen .85 cm Ascorbic Acid .86 cm Unknown .97 cm Identity of unknown mixture Acetaminophen Analysis of Paprika Pigments Spot Number Rf Color 1 1 Red-orange 2 1 Red-orange Calculations
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