observed the solubility and miscibility of some substances. Table 1 and 2 shows the solubility of salt‚ iodine‚ sugar‚ and naphthalene in different solvents. Table 3 and 4 shows the miscibility of substances to other liquid substances. Compound Water Ethanol V. Oil NaCl SOLUBLE INSOLUBLE INSOLUBLE I2 PARTIALLY SOLUBLE SOLUBLE SOLUBLE Sugar SOLUBLE PARTIALLY SOLUBLE INSOLUBLE Naphthalene INSOLUBLE PATIALLY SOLUBLE SOLUBLE Table 1. Solubility of some compounds in water‚ ethanol‚ and vegetable oil Compound
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Mark Getlein book‚ Living with Art takes the reader through a journey into understanding how daily life and rituals impact sculptures. In chapter eleven of the book Getlein explains the different methods of sculpting. The sculpting methods include modeling‚ casting‚ carving‚ and assembling. Modeling uses materials such as clay or wax to create different forms. Casting is the process of pouring liquid material such as bronze or resin into a mold and allowing it to harden. Carving uses wood to create
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Formal Analysis of Aztec Feathered Serpent Sculpture Facing out into the eyes of museum-goers‚ the Aztec feathered serpent sculpture currently on display at the Metropolitan Museum of Art dates from between fifteenth and early sixteenth century. Though the iconographic motif of the feathered serpent is a common and meaningful one in Aztec art‚ the formal elements of this piece communicate an equally strong message. Through deliberate choices in the crafting and facture of this seemingly dense
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Applied English 11 Course Lesson 2 : The Play of Words Introduction: Your last lesson introduced you to the magical world of words that is poetry. This lesson expands your understanding of poetry by probing deeper into that world. You will read more about the techniques that poets use in order to convey their thoughts and feelings so that you will be able to interpret poems on your own. Your aims: * Identify figurative language used in a poem * Distinguish between connotative
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Magan Agarwal Binani Cement Limited Key factors that control the compatibility between Naphthalene-based super plasticizers and ordinary Portland cements Synopsis: Super plasticizers improve the workability of concrete at low water cement ratio but this workability is sometimes lost rapidly in the first hour after contact between the cement and water. This is especially the case for naphthalene-based and melamine-based superplasticizers when used with the so called incompatible cements. It
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Mapua Institute of Technology School of Chemical Engineering and Chemistry Muralla St.‚ Intramuros‚ Manila Melting Point and Boiling Point of Organic Compounds Group No. 5 Manacup‚ Cris Vincent L. Oblena‚ Adrian D. Ong‚ Joshua Jyro B.* *Leader ABSTRACT In compounds‚ two of the physical properties affected by the varying structures are melting point and boiling point. Through the use of the Thomas-Hoover Melting Point Apparatus or the micro method‚ the melting and boiling point of
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Analysis of Hydrocarbons Myra Gurango‚ Geneva Guy‚ Micah Hernandez* and Joyce Lagarde Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines Abstract The organic compounds hexane‚ toluene‚ cyclohexene and naphthalene in hexene were subjected to parallel chemical testing to differentiate their intrinsic physical properties in terms of structure and behavior. The physical state and color were noted by simple physical observation. Nitration Testing was conducted for preliminary
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effective method that is important to be familiar with that is essential in the industrial chemical world. This experiment will allow students to be familiarized with the technique of recrystallization by working with phtalic acid‚ benzoic acid and naphthalene from appropriate organic solvents. Experimental Method 1. Gather 200mg of phtalic acid‚ add drop wise with Pasteur pipette. 2. Set up boiling apparatus and cork test tube then clamp when cooling 3. Recrystallize at 22oC in ice‚ stir
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d. melting. ____ 12. The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first is a. melting. c. deposition. b. sublimation. d. vaporization. ____ 13. If a solid piece of naphthalene is heated and remains at 80°C until it is completely melted‚ you know that 80ºC is the a. freezing
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Intermolecular forces of attraction affect physical properties such as melting and boiling point. Through the Thomas Hoover apparatus‚ the melting point of 8 test compounds was determined. Salicylic acid exhibited the highest melting point while naphthalene‚ the lowest. The stronger the intermolecular forces of attraction‚ the higher the melting point. Boiling point determination was done on 7 different test compounds using micro method. Results show that propanoic acid and n-hexane had the highest
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