Unknown Bacterium #22 Purpose The purpose of this experiment was to find the identity two unknown bacteria in the given test tube. Materials •Bacterial Loop •Bunsen Burner • Petri Dish with agar •Crystal Violet •Gram’s Iodine •95% Ethanol •Safrin •Glass Slides •Microscope •Unknown bacteria in test tube Procedure On the first day‚ one plate was streaked qualitatively and left it in the
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-Unknown Mixtures Lab- Purpose: The aim of this experiment was to find out the two substances of the unknown mixture from salt‚ sugar‚ dirt‚ and baking soda by looking at its properties. Hypothesis: Find the unknown substance by testing it out by heating it‚ pouring water‚ vinegar‚ and observing it . Procedure: 1) Materials- * 100ml of water * Vinegar * Bunsen Burner * 2 beakers * 1 spatula 2) First‚ do steps (3-6)to find out the properties of salt‚ sugar
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Please write an essay on the AFIS system. This is the Automatic Fingerprint Identification System. This should be in the order of 1500-2‚000 words. Bring out the main points of the system. E.g. History‚ who uses it‚ future developments. Also include technical information on how it works with advantages and disadvantages. Automatic Fingerprint Identification system (AFIS) is the biggest fingerprint and criminal history system in the world which operates 365 days a year. The system responds to requests
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Mixed Method Research Manuscript Silva Adeniyi R7001 - Introduction to Research Methods Instructor – Dr. Giselle A. Stone Argosy University‚ Atlanta June 11‚ 2013 Research Manuscript Goering‚ C. Z.‚ PhD.‚ & Baker‚ K. F.‚ PhD. (2010). "Like the whole class has reading problems": A study of oral reading fluency activities in a high intervention setting. American Secondary Education‚ 39(1)‚ 61-77. Retrieved from http://search.proquest.com/docview/814393096?accountid=34899 Type of Study
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Abstract Tool marks evaluation arose out of the necessity to evaluate marks made at a crime scene without an academic basis. Tool mark identification lacks a scientific foundation. Examiners cannot determine the uniqueness of tool marks based on the comparison method because the lack of quantifiable data. Literature has explained that the NAS report has critiqued the reliability of tool mark examination in court. The subjectivity of the examiner is evident during analysis‚ which discredits the use
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Identifying an Unknown Aldehyde or Ketone Introduction The purpose of this lab is to identify an unknown aldehyde or ketone substance using chemical tests. The chemical tests used in this experiment are solubility‚ Schiff‚ Bisulfite‚ and Iodoform tests. Also‚ a 2‚4-dinitrophenylhydrazone derivative synthesis reaction will be completed from which a melting point will be obtained. The chemical test results and the melting point analysis will be compared to the table of compounds given to find the
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The Photographing Pigeon Lover The Entrepreneur which I have chosen is Eberhard Gramatzki. Eberhard was born on the 27th February 1942‚ and grew up in Kellenhusen (Germany) with his six siblings. After marrying a woman called Janet from the Netherlands (1967)‚ they moved to Vermont to continue their life there‚ while having three children. He became interested in becoming an entrepreneur when he was a working engineer for over 24 years at IBM (International Business Machines)‚ a leading US
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4) Mixed economy features attributes of the market and command economy. The majority of the economic decisions in the market are made by individuals and the government doesn’t directly influence the private sector but emanates the economy from the money spent‚ in the form of taxes and borrowings from the private sector‚ and redistribution‚ grants and welfare. Most countries have mixed economies‚ occupied with varying degrees of government intervention. Australia is considered a mixed economy
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melting points‚ a mixed melting point can be taken by mixing samples of the unknown with an authentic sample of the known compound and taken the melting point of the mixture. In this experiment‚ unknown #26 had a melting range of 154°-155°C. After looking at known melting points‚ we expected the unknown to be citric acid. While determining the melting point of the authentic citric acid sample‚ we got a melting range of 153°-160°C. The melting range of the mixed sample‚ unknown and authentic citric
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we have learned in the lab to identify two unknown organisms. PROCEDURE I was given unknown #76. I performed the streak plating method with my unknown organisms. To perform this exercise I needed a TSA plate and labeled the bottom of it with my name‚ group number and organism. I also divided the bottom into three sections. After that‚ I sterilized my inoculating loop using the bunsen burner flame. After letting the loop cool‚ I reached into my unknown test tube with my loop and grabbed the organisms
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