Melting Point essay topics

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  • Br 2 Hbr Solution
    513 words
    Relative Reactivity of AnilinesAbstract: Various Aniline were tested with Br 2/HBr solution, the products were crystallized and melting points attained to verify relative reactivity. My assignment, 2, 4-Dibromoanisol, was prepared in a yield of 52% with a melting point of 55-58 C. Reaction: Mechanism: Procedure: Anisole (0.35 mL, 0.0378 mol) was obtained and placed in a pre-weighed 25 mL round bottom flask, along with 2.5 mL of glacial acetic acid and a magnetic stir bar. Then the reaction appar...
  • Mobile Electrons Between The Layers Metallic Bonding
    506 words
    Element a substance which cannot be broken down into two or more substances by any means. Only contains one type of atom. Compound a substance in which atoms of two or more elements have been chemically combined. Ionic Bonding. Metals bonding with non-metals. Involves transfer of electrons from metal to non-metal, so that both species obtain full outer shell electron configurations (Noble gas configuration)... Metals lose electrons to form positive ions (Cations)... Non-metals gain electrons to ...
  • To Test Nine Substances For Conductivity
    752 words
    CHEMISTRY PRACTICAL REPORT Aim: To test nine substances for conductivity, solubility, appearance and melting point and find out if they were polar, non polar, continuous, ionic or metals. Method: 1) The first step is to collect your safety glasses and coat. 2) The next step is to collect your equipment you need nine substances, power pack, conductivity kit, test tubes, water, turps and Bunsen burner. 3) Next you start testing your substances you can start with any test. If you start with conduct...
  • Point And Refractive Index
    1,064 words
    Introduction This laboratory was designed to examine the physical properties of organic compounds. The three properties determined were density, melting point, and refractive index. Every compound has unique physical properties. In this laboratory the experimental results will be compared to the compounds actual cataloged properties, accuracy will then be calculated through percent error. Theoretical Basis One physical property is density. Density is the measure of mass per area volume (Density ...
  • Melting Point Apparatus
    426 words
    Determination of Melting Points of Benzoic Acid and Benzamide and Composition Diagram of Their Mixtures PURPOSE: The purpose of this experiment is to determine the melting point of benzoic acid and benzamide and make a composition diagram for the mixtures of benzoic acid and benzamide to determine the eutectic point of the mixtures. The melting point of the given unknown will be determined using the melting point apparatus. Pure chemicals such as benzoic acid and benzamide alone have a set melti...
  • Impurities The Melting Point
    543 words
    Regelation is the fusion of two blocks of ice by pressure, or the "successive melting under pressure and freezing when pressure is relaxed at the interface of two blocks of ice". It is a phenomenon in which water refreezes to ice after it has been melted by pressure at a temperature below the freezing point of water. This pressure makes an ice skate form a film of water that freezes once again after the skater has passed. The effect of impurities on melting point A substance containing impuritie...

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