their properties. Paraffin wax was identified as a non-polar covalent solid‚ sucrose is a polar covalent‚ sodium chloride was acknowledged as an ionic solid‚ tin is a metallic solid‚ sand is a network covalent‚ unknown#1 is a non-polar covalent solid‚ unknown#2 is an ionic solid‚ and unknown#3 is a polar covalent solid. These conclusions were made based on their physical and chemical properties. Introduction Solid substances are classified by the types of bonds that hold their individual elements
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sample Observation 1. Nylon Blue‚ furry 2. Cotton Blue‚ furry 3. Silk White‚ elastic 4. Polyester Blue‚ smooth 5. Rayon White‚ elastic 6. String White‚ plastic 7. Wool White‚ fluffy Unknown 1. Blue‚ plastic Unknown 2. White‚ elastic‚ looks like silk Unknown 3. White‚ elastic Unknown 4. Pink‚ plastic Discussion: The results collected in my first table show that all fibres were soft to touch. These fibres also had differences in elasticity and some had a different texture
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Acetaminophen | 0.323 | Aspirin | 0.597 | Caffeine | 0.081 | Unknown 154 (Plate 1) | 0.081‚ 0.306‚ 0.597 | Ibuprofen | 0.698 | Salicyclamide | 0.587 | Unknown 154 (plate 2) | 0.079‚ 0.397‚ 0.587 | Discussion: The goal of this experiment was to use TLC Analysis to determine the analgesic drug present in the unknown solution 154. One observation of the unknown spotting solution was that it was cloudy. After forming the unknown spotting solution it was then heated to make it a more saturated
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and special way! -Unknown 2.) Let this be a short rest before you embark on your journey to greater challenges. -Unknown 3.) Hope you’ll soon be feeling fine the way you were before because things just won’t be the same until you’re well once more. -Unknown 4.) With the warmest of wishes‚ this just comes to say hope that you’re feeling much better today. -Unknown 5.) As you rest and heal‚ know that you are thought of warmly and wished a quick recovery. -Unknown 6.) May you find
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washed of the primary stain. Methods The method used in this experiment was derived from Cappucino and Sherman (2011) as detailed in experiment 10 with substitutions for the unknown bacteria. Aseptic lab technique was followed. One slide of the #7 unknown bacteria and one slide which included both unknown #7 and unknown #2 were prepared using the following stain technique. The initial
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NAME Lab partner- Purpose: To determine the molar mass of an unknown substance by measuring the freezing point depression of a solution of an unknown substance and BHT. Equipment: Test tube‚ 18*150 millimeters Wire stirrer Weighing dish Timer‚ seconds Chemicals: 2‚ 6-Di-tert-butyl-4-methylphenol‚ BHT‚ 16 grams Cetyl alcohol‚ CH3(CH2)14CH2OH‚ 1 gram Unknown substance‚ 1 gram Procedures: Weigh the test tube. Assemble
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and Melting point. Introduction: - Infrared spectroscopy has also made a break though in medicine. It used to evaluate the kidney stone diseases thus broadening the use of IR in different ways. The purpose of this lab experiment is to identify the unknown solutions using the Infrared Spectroscopy (IR)‚ boiling point‚ and melting point (1). The IR helps to determine the compounds such as a functional group. In order to analyze the compound‚ IR and melting point work the best together. According to Pub
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Organic chemistry 201 | Mixed Melting Points | Determination of an Unknown Solid | | [Type the author name] | 9/15/2011 | Purpose : The main purpose of this experiment was to identify an unknown compound/substance by performing multiple experimental melting point tests. Pure and impure solids were tested to see what affect pureness/impureness had on a melting point. Background: The melting point of a solid can be used to determine the purity of the solid. Pure samples usually have
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Name: Bill Marano Due Date: 4-1-13 Experiment Title: TLC Analysis of Analgesic Drugs Purpose: The purpose of this experiment is to identify the brand name of an unknown commercial analgesic product by TLC analysis. Unknown #1 solution was run against standard solutions of individual analgesics. The components of the unknown product were identified by comparing characteristic traits‚ such as Rf‚ fluorescence and iodine staining‚ to those exhibited by the standards. The name of the commercial product
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experiment thin-layer chromatography (TLC) was used to determine the composition of an unknown mixture of analgesics given five references of AC‚ ASP‚ CAF‚ IBU‚ SAL‚ an unknown consisting of a mixture of three of the references‚ and two unknowns (6‚23) containing a single reference compound. The composition of the unknown mixture and two single unknowns were determined by spotting the reference compounds and the unknown compounds on two TLC plates. Placed them in a developing chamber that contained 0
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