Students at NFV middle school are on a journey to figure out a mystery mixture. They have to search through 9 chemicals to figure out which one is it. Seems easy huh? Nope‚ they have to analyze the physical and chemical properties (a very important part in this)‚ the data‚ argue‚ and give important statements on what they think is in the mix. That’s when arguing comes in‚ not arguing on the person but the statement. I think it is citric acid and baking soda. Eighth graders have to find out what
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Chem 3100 Thursday 9am-1:45pm Olumba Obu Unknown #: 146 Fall-11 Organic Chemistry Midterm Report 13 October 2011 Table of Contents Separation of Benzoic Acid and Acetanilide 3 Extraction and Purification of Caffeine from Tea 4 Extraction of Trimyristin from Nutmeg 5 Conversion of t-butanol to t-butyl chloride 6 Appendix 7 Calculations 8 Literature and Experimental Values of Benzoic Acid and Acetanilide 9 Experimental Caffeine IR 10 Literature Caffeine
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You can use a flashlight to help see if a mixture is a solution‚ a suspension‚ or colloid. A solution is a mixture that forms when substances dissolve and form a homogenous mixture. A suspension is a heterogeneous mixture that separates into layers over time. A colloid is a mixture that contains some particles that are intermediate in size between the small particles in a solution‚ and the larger particles in a suspension. A homogenous mixture is a mixture in which the substances are so evenly distributed
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RULES OF MIXTURES FOR ELASTIC PROPERTIES The paper is about the rules of mixtures which are used to express the dependencies of the physical properties and mechanical properties which depend on type‚ form‚ quality and arrangement of its constituents‚ but they are based on various assumptions so one should with caution‚ especially if they are used anything more than preliminary design. The paper mainly concentrates on expressions for elastic properties which are as follows: Unidirectional Ply-
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the pineapple into a thick‚ pulpy mixture of fresh pineapple. You need about a cup of this mixture. 2. Prepare the Jell-O as described in the directions on the box. 3. As you are boiling the water for the Jell-O‚ take a tablespoon of the thick‚ pulpy pineapple mixture and pour it into one of the three small bowls. Save that tablespoon for use with that bowl only. Mark the bowl as “room-temperature pineapple juice.” 4. Take the rest of the thick‚ pulpy mixture and pour it into a pot. You will
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The obtained mass of benzocaine and benzoic acid mixture was measured to be 2.075 grams. Following being dried for a week the mass of benzocaine was recorded to be 0.250 grams‚ and benzoic acid was recorded to be 0.600 grams. The melting point range of benzocaine was measured to be 89.5°C-91.5°C‚ while benzoic acid’s melting point range was measured to be 129°C-131.3°C. The percent mass recovered was calculated to be 40.96% for the experiment. Table 1 illustrates the collected information. Starting
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to purify individual chemical compounds from mixtures of compounds’ (Wikipedia‚ 2011). This method is similar to thin layer chromatography‚ but the compounds in the mixture are collected separately. Green dye is used in this experiment that consists of blue and yellow constituents. Materials and Methods: As per SCI105 Chemistry laboratory manual 2012‚ Brooks‚ 2012‚ page 12-19. With the following changes: The mass of recrystallization mixture is 10.05g not 10g. Results: Part
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they receive in their mailbox‚ the e-mails and pop-ups on their computers‚ or the images they see on television are advertising. The logos on the NASCAR autos or even the t-shirts with every name known to mankind are advertising Advertising A Mixture Of Art And Science: Advertising is a fine balance between art and science. The science part of it is consuming information‚ but the true challenge is translating these facts into a relevant strategy‚ into an original‚ creative execution‚ and generating
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Running Head: THE SEPARATION OF CHURCH AND STATE 1 The Separation of Church and State Montel Williamson Park University Psychology 101 SEPARATION OF CHURCH AND STATE 2 “I pledge allegiance to the flag of the United States of America and to the Republic for which it stands‚ one nation under God‚ indivisible‚ with liberty and justice for all”. Who
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1. Separation anxiety is a common stage that a child go through‚ where the child becomes nervous and fearful when separated from parent‚ another caretaker or a person the child is attached to. This condition happens between 8 months of age to 3 years of age (Ricci‚ Kyle &Carman‚ 2013‚ pg. 1128). people’s attitudes about separation of babies are cultural‚ since western cultures encourage autonomy at a very early age while in other cultures separation of mother and baby is not encouraged especially
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