Sam Chu (Jacob Gorman and Tyler Kui) Lab #1: Separation of a Mixture Mr. Mejia 10/3/14 Separation of a Mixture Lab Report Abstract The purpose of the experiment was to separate an initial heterogeneous mixture composed of 5.00 grams of salt‚ 2.00 grams of sand‚ 50.0 mL of water‚ 15.00 grams of pebbles‚ and 1.00 gram of iron filings‚ and leave as much salt as possible remaining. Using separation techniques including magnetizing‚ evaporation‚ filtration‚ etc. the heterogeneous mixture was thoroughly
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of camphor ‚ the I added 1.0 ml of methanol in a 10-ml Erlenmeyer flask. I stirred with a glass stirring rod until the camphor has dissolved. Then I added 0.10 g of sodium borohydride‚ after I started to boil the contents of the flask on a warm hot plate for 7 minutes then I left the reaction to calm. I added 3.5ml of ice-cold water‚ then I collected the white solid by filtering ‚ I transferred the solid to a 10-ml Erlenmeyer flask then I added 4ml of methylene chloride to dissolve the product‚ then
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vinegar Phenolphthalein wash bottle of pure water Two 100mL or 150mL 250mL beaker 100mL volumetric flask with stopper 50mL buret 10mL volumetric pipet pipet bulb ring stand buret clamp stirring rod small funnel two 250mL Erlenmeyer flasks meniscus finder Procedure: 1. 10mL of vinegar was obtained in a clean‚ dry 100mL beaker. 2. One 10.00mL portion was pipeted into a clean 100mL volumetric flask and dilute to the mark. 3. The mixture was mixed by stopper and inverts it. 4. 50mL of NaOH(aq)
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Laboratory safety is an integral part of any lab experience. If the participants are unkempt or precarious‚ they can easily cause a huge accident or even tragedy. When working in the lab‚ so many different hazards are faced. The rules of the laboratory are in place to ensure that one does not hurt themselves‚ let alone everyone else in the room or even the whole building. Each person needs to be responsible for themselves‚ while also watching for potential dangers others may not notice. The first
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Organic Chemistry II Laboratory (ABCT357) Although studying fundamental theories of chemistry in the class is important to understand the concept of chemistry‚ carrying out experiments to corroborate the theories is also important. It is very important for students to get used to experiments in order to speed up their experiments. Expt.1. Acetylation of α-D-glucopyranose Add slowly 2.5 g (0.014 mol) of powdered D-glucose in small portions (roughly in 7-10 portions and 5 min for each addition)
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CHEM 323 PHSICAL CHEMISTRY LABORATORY Name: PINAR AYDOĞAN Date of experiment: 03/10/2011 Date of submission: 10/10/2011 Accompanying TA: Gözde Barım Experiment Title: Thermal Equation of State and Critical Point PURPOSE: Determining the critical
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The Laboratory’ ’The Laboratory’ by Robert Browning is a dramatic monologue that tells the story of a woman’s plot to murder her romantic rival. The form in which Browning has written this poem subtly reveal aspects of the female speaker whilst allowing the reader to make their own personal judgement on her behaviour and character‚ which would commonly be that she is a jealous‚ obsessed‚ blood-thirsty and sadistic woman. The speaker in the poem demonstrates signs of insanity and instability
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of water with 4.2 mL of 19.1 M NaOH‚ the diluted solution of NaOH was poured in a buret until the initial volume on the buret was 30.00 mL. 0.3005g of KHP was dissolved in 40.0 mL of 50% ethanol‚ and a drop of indicator was added to the Erlenmeyer flask containing the KHP solution. When the titration of KHP solution with NaOH reached its endpoint‚ pale pink color was observed‚ the final volume of NaOH in the buret‚ 45.00 mL‚ was recorded. Based on the data obtained and the equivalent weight of KHP
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: Sales Area Consultant Duties • Introduces‚ promotes and actively sells the company’s products to the public and private sectors including universities‚ academic hospitals‚ pathology groups‚ pharmaceutical companies‚ industrial laboratories‚ food and beverage industries‚ agriculture and veterinary institutes‚ purchasing authorities
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HEALTH CARE ORGANIZATIONS * Laboratory Medicine (clinical pathology) * A medical discipline in which clinical laboratory science & technology are applied to the care of patients. * Comprises several major scientific disciplines: clin chem & urinalysis‚ hematology ‚ microbiology‚ immunology & blood banking‚ for some laboratories cytogenetics‚ toxicology & other specialized divisions are present. USE OF THE CLINICAL LABORATORY * Serve to educate the physician
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