Identification of Metallic Ions Pre Lab Questions: 4pts 1. What are the learning goals of this experiment? To perform and observe the flame tests of some alkali and alkaline earth metal ion 2. Define ground state and excited state of an atom. Ground state- normal configuration of the electrons about the atom or the ion of an element; stable particle electrons are at lowest possible energy level Excited state- when stable particles are heated to very high temperatures some of the electrons leave
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Error identification – Extra practice exercises. Decide which part of the sentence is grammatically incorrect. Then look at the answers below. 1. I enjoyed study geography at school and now I’ve enrolled at the Economics Faculty. 2. I used to be keen of all scientific subjects but now I would prefer to study art. 3. I want meet your sister when she comes to see you – she sounds very nice. 4. My friends tell the English exam is quite difficult but I’m not worried. 5. The tickets
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Colton Schilling Mrs. Handman Writing 121‚ 4th Classification/identification Different sports acquire an individual to bring different characteristics and personal attributes to the table. Baseball‚ Football‚ and Wrestling all have one thing in common and that is they fall under the athletics department; therefore‚ you have to be somewhat of an athlete to be good at any of these things. Each sport is individually tough‚ but there are different types of tough. Each one requires a certain type
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Chem 253 - Organic Chemistry I Lab 10: Isolation of Identification of the major constituent of clove oil 3/15/2012 Purpose: The purpose of this lab was to isolate the cove oil from ground cloves and determine the identity of the major constituent that is known to have the molecular formula C10H12O2 through IR spectrometry. Theory: Many people search for alternative ways to treat illnesses other than the conventional use of drugs and surgery. These alternative ways include aromatherapy‚
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ability to identify metals is an extremely important one. With this ability‚ we can correctly assign different traits‚ and use the metal in its most suitable environment. This is important to many industries‚ where metals play an increasingly large role. Determining the identity of the metal is paramount to determining what conditions to use the metal under. This seemly simple task is‚ however‚ can be quite complex‚ as there are many ways by which one can identify a metal‚ each with varying amounts
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Recrystallize with 2 mL of EtOH 10. Filter pure product and collect MP and mass 11. Perform a saturation test with a bromine and potassium permanganate solution 12. Obtain NMR from instructor and identify peaks Apparatus: Post Lab: Observations:
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Identification method Animals the method can be used on How Use Implications of the welfare of the animals Ringing/ banding Wild domesticated‚ birds Small‚ individually numbered/marked metal or plastic tags are put on to the leg or wing of the bird. To identify individual birds‚ to track bird migration‚ population. During the capture for ringing it is common to record various data about the birds. Causes stress in the process of catching and ringing/ banding. Possibility to lose ring/band
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Specific Heat of a Metal Post-Lab I. Purpose The purpose of this lab is to determine the specific heat of an unknown metal. II. Safety Wear goggles and lab apron at all times. Use caution when boiling water. Do not pick up hot beaker or hot metal with hands. Use tongs. III. Pre-Lab Questions 1. A 12.5 g metal is raised to 100C in boiling water. It is put into 82.8 g of water at 22.4C‚ and the water rises to 28.6C. Recalling that the specific heat of water is 4.18J/gC‚ use the equation above
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Group 2 ions in solution were precipitated out in reaction. Nearly complete reaction was obtained. | |2-3 Separation and Detection of Bismuth |After heating with HNO3 added a yellow gelatinous substance appeared. After NH3 was added to create a basic solution no cloudy white precipitate was observed. |This was elementary sulphur and was discarded. No bismuth present. | |2-4 Identification of Copper |No blue colour observed in the solution for 2-3. |No copper present. | |2-5 Identification of
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Identification of Bacterial Pathogens basic skills in diagnostic bacteriology Dr.T.V.Rao MD Dr.T.V.Rao MD 1 Identification of Microorganisms • For many students and professionals the most pressing topic in microbiology is how to identify unknown specimens. • Why is this important? • Labs can grow‚ isolate and identify most routinely encountered bacteria within 48 hrs of sampling. • The methods microbiologist use fall into three categories: ♣Phenotypic- morphology (micro and
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