Preparation and properties of boric acid Result The mass of borax‚ g | 10.0734 | The mass of watch glass‚ g | 36.2842 | The mass of watch glass with product‚ g | 39.9803 | The mass of product‚ borix acid‚ g | 3.6961 | Test | Result | Boric acid is dissolved in water and methyl red indicator is added. | Pink solution is observed | Mannitol is dissolved in water and methyl red indicator is added. | Pink solution is observed | Both solution is added together | The colour of solution
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(A: 1.80 M HCl) 2. What is the molar concentration of an acetic acid (CH3COOH) solution containing 3.21 moles in 4.50 liters? (A: 0.713 M) 3. How many moles of KI are present in 125 ml of 0.500 M KI? (A: 0.0625 mol KI) 4. How many moles of ammonia (NH3) are present in .360 L of 2.13 M NH3 solution in water? (A: 0.767 mol NH3) 5. How many liters of water are required to prepare a solution of 7.25 M MgCl2 from 4.89 moles of MgCl2? (A: 0.674 L) 6. What is the molarity of a
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OCCUPATION-BASED ACTIVITY ANALYSIS FORM 1. Occupation: Peeling an orange Areas of Occupation: Subcategory: x Activities of daily living Feeding □ Instrumental activities of daily living □ Education □ Work □ Play □ Leisure □ Social Participation 2. Values‚ beliefs‚ spirituality associated with participation: Healthy Eating 3. Contexts Context Supports Inhibits Physical/space demands Clean‚ well-lit space Contaminated‚ dark space Social None None
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Experiment #1: Separation of Acid‚ Base‚ and Neutral Compounds from a Solid Mixture by Liquid-Liquid Extraction Introduction Liquid-liquid extraction is a technique used to separate chemical substances in order to purify or identify the various components of a mixture. Flavors‚ spices‚ perfumes‚ and medicines are just some of the everyday things that are extracted from plants and other natural sources [1]. The basic principle used to carry out this separation is the mixing of two liquids that are
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Experiment 6 Preparation and reactions of boric acid Objectives: To prepare boric acid from sodium tetraborate (borax) To carry out tests on the prepared sample of boric acid To study the physical and chemical properties of boric acid Introduction: Boron is an element in the p-block of the periodic table. It has the electron configuration of 1s22s22p1 and is in group 3 or goup 13 (IUPAC classification). In nature‚ it consists of two isotopes 10B (19.6%) and 11B (80.4%). Boron is bonded
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Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein
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Estimating Price Elasticities with Theory-Based Priors Author(s): Alan L. Montgomery and Peter E. Rossi Source: Journal of Marketing Research‚ Vol. 36‚ No. 4‚ (Nov.‚ 1999)‚ pp. 413-423 Published by: American Marketing Association Stable URL: http://www.jstor.org/stable/3151997 Accessed: 22/07/2008 16:25 Your use of the JSTOR archive indicates your acceptance of JSTOR ’s Terms and Conditions of Use‚ available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR ’s Terms and Conditions
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Lecture 5 Lizan A. Majeed Reading Paragraph Purpose Each paragraph in a text has a clear purpose. For example: The first paragraph introduces the topic‚ states the purpose of the text‚ or describes a problem or situation. The body paragraphs develop arguments‚ try to persuade‚ suggest solutions‚ or describe developments. The final paragraph concludes‚ evaluates‚ or discusses consequences. Identifying the purpose of each paragraph helps you understand the text and decide where
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and Contrasting Apples and Oranges Oranges Apples Learning Target Write a compare and contrast paragraph. by Dr. Deborah Wahlstrom Successdeb@aol.com Visit my blog at http://datadeb.wordpress.com/ http://www.readwritethink.org/materials/compcontrast/ By Dr. Deborah Wahlstrom Successdeb@aol.com Visit my blog at http://datadeb.wordpress.com/ Comparing and Contrasting Apples and Oranges Apples Oranges Both fruits red green Smooth skin Grow in cool climates food orange juices rough skin Grow
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Freedom is appealing because it defends choice. In choosing‚ one grows to the beat of her own individuality. In the novel‚ A Clockwork Orange‚ Anthony Burgess creates a character‚ Alex‚ who chooses evil over goodness‚ until he is arrested and stripped of his free will. Within prison‚ he is chosen to be the first participant of the Ludovico Technique‚ an approach that is suggested to rapidly yield promising results‚ by which he becomes forced to be sickened by violence and by the music of Beethoven
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