Then this was used to find out how many mL of 0.5 NaOH solution is needed to react completely with all the copper (II) sulphate in solution. Then titrate ¼ of the estimated amount number of mL of NaOH needed to react with the sulphate solution. Then add 5 mL at a time NaOH until Cu(OH)2 precipitate does not form. Record the correct number off mL which forms to NaOH solution. Fold the filter paper and stick inside the funnel‚ and pour the solution of copper (II) hydroxide through the filter. The purpose
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volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders Distilled water Metal Samples W‚ X‚Y & Z Procedure: 1. Class split into 5 groups. Every group will get data for four metals and tell it to the class 2
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Unit 2 Home Labs Goals: • Read Safety • Perform Changes: Physical or Chemical Lab • Perform Special Physical Properties of Matter Lab • Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions‚ and
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Introduction Table of Contents Introduction Materials Chemicals Equipment Safety Containers Measuring Devices Other Equipment Procedure Synthesis of Aspirin Crystalizing the Aspirin Recrystallizing the Crude Aspirin Finding the Melting Point Range Safety Precautions Acetic Anhydride Sulphuric and Salicylic Acid Heating Observations Mass of Aspirin Synthesized Melting Point Calculations Percentage Yield Maximum Yield Crude Product Final Product Melting Range Percentage
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they do provide some sense of the issues to be faced. Second‚ diet problems that are missing the constraints that force variety into the diet can be terribly embarrassing. It has been said that a hospital in New Orleans ended up with an LP solution to feed each patient only castor oil for dinner because analysts neglected to add constraints forcing a well-rounded diet. Alternative Examples Alternative Example 8.1: Natural Furniture Company manufactures three outdoor products‚ chairs
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ENGINEERING 1. Course Number and Title: CHEM-181 General Chemistry I 2. Semester Hours: 4 Contact Hours: (3 + 2) Lecture Lab 3. Catalog Description This course‚ intended for science majors‚ is the first course of a two-course sequence. Course topics include stoichiometry‚ inorganic nomenclature‚ solutions‚ gas laws‚ thermochemistry‚ atomic structure‚ and chemical bonding. The laboratory work includes basic laboratory techniques and is intended to support lecture topics.
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Project Topic : SOLID WASTE DISPOSAL IN MY LOCALITY Page |3 Acknowledgment I have taken efforts in this project. However‚ it would not have been possible without the kind support and help of many individuals and organizations. I would like to extend my sincere thanks to all of them. I take this opportunity to express my profound gratitude and deep regards to my teacher Mrs. Udita Mukherjee ‚who gave me the golden opportunity to do this wonderful project on the topic “Solid Waste Disposal in
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Purpose: The purpose of this lab is to identify the presence of cations and anions in four unknown solutions by identifying whether they are copper‚ silver‚ iron‚ or chloride ions which is done by adding sodium hydroxide‚ solid copper‚ silver nitrate‚ and potassium thiocyanate to the solutions and analyzing the chemical reactions. Introduction: Chemical change‚ unlike physical change is the change in the composition of a substance rather than simply its shape‚ size‚ or state (Marie‚ 2015). Signs
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fm Page 517 Friday‚ May 21‚ 2004 1:48 PM Table 17.2 Heats of Combustion at 25°C Substance ∆H (kJ/mol) Formula Hydrogen H2(g) Ϫ286 Carbon C(s)‚ graphite Ϫ394 Methane CH4(g) Ϫ890 Acetylene C2H2(g) Ϫ1300 Ethanol C2H5OH(l) Ϫ1368 Propane C3H8(g) Ϫ2220 Glucose C6H12O6(s) Ϫ2808 Octane C8H18(l) Ϫ5471 Sucrose C12H22O11(s) Ϫ5645 Table 17.2 lists heats of combustion for some common substances. The heat of combustion is the heat of reaction for the complete burning of one mole of
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Lesson Plan Name: Geometric Solids Content Area: Math Grade Level: Kindergarten Time Frame: 45 min Prior to this lesson the students had a lesson on attributes. The children defined and identified attributes in different two-dimensional shapes. MA Framework Standard: Geometry K.G Identify and describe shapes (squares‚ circles‚ triangles‚ rectangles‚ hexagons‚ cubes‚ cones‚ cylinders‚ and spheres). 2. Correctly name shapes regardless of their orientations or overall size. Identify
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