and Gram Staining Method Results Table 1. Gram stain reaction and cellular features of the culture. Gram staining methods were applied on the given mixture of Bacillus cereus‚ Escherichia coli and Staphylococcus aureus and then examined microscopically. Results were recorded in Table 1. Gram Reactions Cell shapes Cell Ends and Arrangement Size Distinctive Characters Predicted Bacteria Bacteria 1 Gram positive (purple) Cocci Rounded‚ clusters‚ singly Small - Staphylococcus aureus Bacteria 2 Gram
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Lab Report # 11 By: Andrew Hoitt CHEM 105 Lab 11/29/2012 Lab # 11 – Acid - Base Titration Introduction: The purpose of this lab is to determine the molarity (M) of an unknown HCl solution. A NaOH solution will be made and its molarity calculated. A sample of the NaOH solution will be titrated against the unknown HCl solution to calculated the volume needed to neutralize it. With these volumes the unknown molarity can be calculated. Theory: Solutions
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Books on newton Newtons gift http://elibrary.mel.org/search~S15?/XNewton%27s+gift+&searchscope=15&l=&Da=&Db=&p=&SORT=D/XNewton%27s+gift+&searchscope=15&l=&Da=&Db=&p=&SORT=D&SUBKEY=Newton%27s+gift+/1%2C8%2C8%2CB/frameset&FF=XNewton%27s+gift+&searchscope=15&l=&Da=&Db=&p=&SORT=D&2%2C2%2C the making of a genius. http://elibrary.mel.org/search~S15?/Xthe+making+of+genius&searchscope=15&SORT=DZ/Xthe+making+of+genius&searchscope=15&SORT=DZ&extended=0&SUBKEY=the+making+of+genius/1%2C685%2C685%2CB
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Negative Externalities We live and work in a world driven by a fossil fueled economy. Our cars and other dominant forms of transport run primarily on gasoline derived from oil. Our homes and work places stay heated and cooled using electricity generated by utilities heavily dependent on coal. Many air pollution issues such as climate change‚ acid rain and smog are directly related to our energy choices. Solutions to air quality issues range from calls for greater energy efficiency to increased
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Antibiotic Resistance in Bacteria For about 50 years‚ antibiotics have been the answer to many bacterial infections. Antibiotics are chemical substances that are secreted by living things. Doctors prescribed these medicines to cure many diseases. During World War II‚ it treated one of the biggest killers during wartime - infected wounds. It was the beginning of the antibiotic era. But just when antibiotics were being mass produced‚ bacteria started to evolve and became resistant to these medicines
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Lab Report Preparation Guidelines—IR Spectroscopy‚ General Unknowns‚ CH 315. Introduction/Purpose State in simple terms what the purpose was. Since one is issued a vial of an unknown substance‚ the “purpose” as such is not exactly in doubt. The object is simply to state that obvious purpose‚ as well as summarize (a comma-ed list here is fine) the various means‚ tests‚ so forth that are performed in the approximate order that they are performed. (approximately 10 points) Experimental
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Chemistry Lab Report Purpose The purpose of this lab is to determine the identity of an unknown liquid by measuring its density and its boiling point and try to match it with those solutions given in Table 2 of experiment 2. Procedure Part A In Part A‚ The main purpose was to find the determination of the density of the unknown (j41) and by doing that we had to determine volumes of the unknown liquid (j41) using three different volumetric devices which are graduated cylinder‚ pipette
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A Comparative Essay between “Disabled” and “An Unknown Girl” Moniza Alvi reflects on India as her hand is hennaed by “an unknown girl” “in the evening bazaar”. The predominantly upbeat mood of this poem contrasts with the pessimistic mood in “Disabled” written by Wilfred Owen‚ a soldier in the First World War‚ stating his anti-war view through a poem on the life of a young soldier “sewn short at elbow”‚ crippled by war. In his poem‚ the difference between past and present allows Owen to reveal
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Objective: To successfully separate and identify all three unknown cations‚ found in a mixture and belonging to one of two specific groups (2 from one and 1 from the other). In order to do this we will be using various tests and reactions and observing the effect they had on our solution. Materials: Pasteur pipets Bunsen Burners Stirring rods Excess reagents Hot plates Sample QA unknown 101-5.7 Table of steps and observations: Step/Test |Observation |Inference | |2-1
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Writing Negative Messages LEARNING OBJECTIVES After studying this chapter‚ you will be able to 1 2 3 4 Apply the three-step writing process to negative messages Explain the differences between the direct and the indirect approaches to negative messages‚ including when it’s appropriate to use each one Identify the risks of using the indirect approach‚ and explain how to avoid such problems Adapt negative messages for internal and external audiences 5 6 7 Explain the importance of maintaining
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