Introduction The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in
Introduction The purpose of this lab was to identify unknown bacteria cultures using various differential tests, and my unknown bacteria is #17. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. Whether the tests performed identified specific enzymatic reactions or metabolic pathways, each was used in a way to help recognize those specifics and identify the unknown cultures. The differential tests used to identify the unknown cultures were Gram stain, Catalase, Mannitol Salt Agar (MSA), Blood Agar, Novobiocin, Coagulase, and DNAse (Alachi, 2007).
Thomas Goss Microbiology for Health Sciences Dr. Wiles 10/17/14 Unknown #44 Lab Report Bacteria are ubiquitous; they can be found on the skin, in the soil, and inside the body. Because of the very nature of this ubiquity, it is important to be able to determine between different strains of bacteria. An example of this is determining the causative agent for a disease so that the patient will be treated with the appropriate antibiotics. It may be important to determine the bacteria in a certain region, because like with enteric bacteria, it is normal to find them in the digestive tract as they are in a symbiotic relationship with our bodies in this area; however, they also cause opportunistic infections in places outside of the digestive tract to our detriment, such as with a urinary tract infection. Some strains of bacteria are common to nosocomial infections, and identifying these bacteria as such helps create the guidelines for healthcare workers in antiseptic technique. All of the morphology and characteristics of each strain of bacteria help us to better understand the role of bacteria in the body as well as helps us understand how they can cause illness, and what treatment regimen to set in place. In lab this semester, a sample of unknown
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 Brown/Red Clear/Milky Clear/Milky How can benzoquinone be detected? Benzoquinone can be detected if you see a brownish amber color in the solution Which two solutions need to be present to produce the brown-colored benzoquinone? Potato When the pH is not at its optimum, the differing pH's will disrupt the bonding between the R groups of the amino acid causing its structure and the shape of the activation site to change
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 distribution, it is an uncommon cause of community-acquired infection and is most often encountered inpostoperative and other nosocomial settings. (2, 3) Morganella morganii infections respond well to appropriate antibiotic therapy; however, its
RISK MANAGEMENT PLAN STEP 10: In your lab report file, describe in what ways….. A typical Risk Management plan (RMP) has five steps – Plan, Identify, Assess, Respond, and Monitor. As we discuss the five steps in details, it would be evident that they hold good in every set up in a
Unknown 12 was proved to be Proteus vulgaris. This organism was a gram-negative rod growing in single. This organism, which grew on a TSA plate, was catalase positive. A drop of H2O2 was added on to the colony and it began to bubble. Therefore, the catalase enzyme was present and broke down the peroxides in to non-toxic forms H2O and O2. Unknown 12 was oxidase negative. Three drops of Kovac’s reagent was added to a colony growing on the edge of the plate. The enzyme oxidase, reacts with oxygen and the Kovac’s reagent to cause a purple edging affect in a positive result. There was no effect regarding unknown 12, therefore oxidase was not present making it a negative result. This bacterium grew in both room air and Brewar’s jar. This means that
Materials Energized DR radiographic unit Phantom knee 8 Saline filled bags 10x12 DR IP w/o grid Image processor Positioning Sponges Exposure Techniques and SID 60 kVp, 4 mAs, 40 SID Procedures Make three exposures using given technical factors on a phantom knee in PA position . Include saline bags in exposures 1 and 2 to demonstrate patient soft tissue thickness.
3- A) Unknown 3 b) Iron and Barium were present in unknown 3. Assigned unknown reacted with all 4 reactants and formed precipitate with 3 of them (Sodium carbonate, sodium hydroxide and Sulfuric acid). During the experiment it reacted very similarly to Iron (III) nitrate and Barium nitrate. For example, with
Triple Sugar Iron Agar test, there was a gas production seen in the media. The media was yellow slant and yellow butt indicating glucose, lactose and/or sucrose fermentation with acid accumulation in slant and butt. For sulfur reduction, it was negative since it did not turn black in color indicating no sulfur was reduced.
Hypothesis: The purpose of this experiment was to investigate the question will different food sources affect the level of activity of detoxification enzymes in bean beetles? The class alternate hypothesis is different food sources will affect the level of activity of the detoxification enzymes in bean beetles. The null hypothesis is the different food sources will not have any effect on the level of activity of the detoxification enzymes in bean beetles.
How should the unknown microscopic organisms be classified? The concept of the experiment was to conduct a systematic observation about the traits of unknown organisms, and classify them to the right group. Making detailed observations about the traits, made it possible to identify which cell the trait belonged to
2. (5 pts) List and explain the names and affiliations of the various characters/stakeholders in this story – I’m looking for us to use the story to map out the complexities that are generally associated with solving public health puzzles – the stakeholders you list and explain here should apply to many of the cases we consider going forward.
a. What was ∆T for the water? __________ ˚C b. What was ∆T for the metal? __________ ˚C c. How much heat flowed into the water (cwater = 4.184 J/g˚C)? __________ J d. Calculate the specific heat of the metal. __________ J/g˚C e. What is the approximate molar mass of the metal? __________ g/mol 2. When 2.00 g of NaOH were dissolved in 49.0 g water in a calorimeter at 24.0 ˚C, the temperature of the
An unknown was given to our group from the professor. The unknown was in nutrient broth, the group received unknown number 3. And the task was to identify the unknown and try to make an educated guess, and identify the unknown #3. A wide variety of processes had been