Dr. Braun/Lab K Lewis Symbols & Structures Purpose The purpose of this lab experiment is to practice writing Lewis symbols for elements and monatomic ions while writing Lewis structure for molecules and polyatomic ions. I will also be writing chemical equations using Lewis structures for different reactions involving either ionic compounds or covalent compounds. Lastly‚ I will I will
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is equal to 1) 2 × 6.02 × 1023 40 2) 40 × 6.02 × 1023 2 3) 6.02 × 1023 2 × 40 4) 2 × 40 × 6.02 × 1023 8. At STP‚ 32 grams of O2 would occupy the same volume as 1) 64 g of H2 2) 32 g of SO2 3) 8.0 g of CH4 4) 4.0 g of He 9. Which compound has the empirical formula CH2 O? 1) CH3OH 2) CH3CH2OH 3) HCOOH 4) CH3COOH 10. Which list consists of types of chemical formulas? 1) atoms‚ ions‚ molecules 2) metals‚ nonmetals‚ metalloids 3) empirical‚ molecular‚ structural 4) synthesis
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Melting Point and Boiling Point of Organic Compounds Bongo‚ Sayre‚ J1 1Student‚ Organic Chemistry 1 Laboratory / B11‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapúa Institute of Technology ABSTRACT The melting point of a substance is the temperature at which the material changes from a solid to a liquid state while the boiling point is the temperature at which it changes from liquid to solid. In this experiment‚ the main objectives were to determine the effects of the following
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3/19/2012 HOME ECONOMICS CAKE MAKING 3 Bignall | Ashlie Danielle Robinson Introduction C ake is a form of bread or bread-like food. In its modern forms‚ it is typically a sweet and enriched baked dessert. In its oldest forms‚ cakes were normally fried breads or cheesecakes‚ and normally had a disk shape. Determining whether a given food should be classified as bread‚ cake‚ or pastry can be difficult. Modern cake‚ especially layer cakes‚ normally contain a combination of flour
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measuring cylinder • Stirring rod • Stop watch • Bunsen burner • Piece of Magnesium • Sand paper • Permanent marker 2.2 Diagram / Photograph 2.3 Procedure Firstly an aim and hypothesis were written up‚ then 2mm of water was poured into the measuring cylinder and that was tipped into the micro tube. Then The 2mm line was labelled with the permanent market. That water was then discarded. After this the piece of magnesium was cleaned with sandpaper and bent into shape. The acid was then poured
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EXPERIMENT 3 Name: Flame Tests & Electron Configuration Pre-Laboratory Questions and Exercises Due before lab begins. Answer in the space provided. 1. Write electron configuration for the alkali metals Li‚ Na‚ K‚ and Rb. Li ____He 2s1_____________________________________________ Na ____Ne 3s1______________________________________________ K _______Ar 4s1___________________________________________ Rb _______Kr 5s1___________________________________________ 2. Write the electron configuration
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Preliminary Test and Solubility Classification of Organic Compound Keene Louise Topacio‚ Christopher Jay Robidillo Abstract The experiment focuses on how to classify organic compounds by its functional groups. It is done by preliminary test and with the solubility test. Preliminary test used two known compounds also the unknowns. Physical state‚ color‚ odor‚ and ignition test were noted. The known compounds are inorganic and organic compounds. A comparison is made from the observation in the unknown
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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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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