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     Introduction: The purpose of this lab was to study how atoms bonds, how electronegativity affects bonding, and the structures bonded atoms make. In this lab models of an atoms structure were made based on the formulas given. This lab illustrated the effects of electronegativity on bonding, the...
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  • VSEPR
    Purpose: The purpose of this lab is to further our understanding of interactions between molecules. We have to draw Lewis structures during this lab. Describe single, double and triple bonds. We also must predict the structure of a molecule using the VSEPR theory. Materials: ...
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  • Gummy Lab
    INTRODUCTION: In this lab we are going to determine the molecular shape of substances by using the Valence Shell Electron Pair Repulsion model or VSEPR model for short. To show the repulsion of shared and unshared electron pairs around the central atom we are going to use a 3 dimensional structure to help show...
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  • lewis dots structure
    Lewis Structures and the Shapes of Molecules Pre-Lab Assignments: To be assigned by your lab instructor. Student Learning Outcomes: Learn how to draw Lewis structures. Learn how to draw Lewis structures for atoms which violate the octet rule. Learn how to use Lewis structures and VSEPR...
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  • Drfgtrfgf
    | |12.9 questions 74, 78, 80, 82*, 86* | * = ‘important’ homework question The Electronic Structure of Atoms and Molecules Recall: What caused Mendeleev to stack certain elements in ‘Family’ groups? [pic] Answer: Macroscopic properties:...
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  • Bird Essay
    comfortable with the following topics before completing the Discussion-Based Assessment and the Module Exam: Lesson 02.01: Early Chemistry and Atomic Structure * Describe the changes in the atomic model over time. * Explain how different observations and experiments led to changes in the atomic model...
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  • saas
    stoichiometry, relative masses, empirical and molecular formula as well as mole concept. 2. To illustrate and explain the structure of atoms based on Lewis and molecular orbital structure as well as generate electronic configurations for element. 3. To describe the type of chemical bonding (Ionic, covalent...
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  • BOBY
    experiment is focused on theoretically predicting the acidity of several molecules. A software package called “Spartan” will be used to predict the structure and the electrostatic potential of each molecule. The electrostatic potential at a point P is defined as the Coulomb energy of interaction between...
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  • Evaluation of the Gas Law Constant
    Vanessa Gale Formal Lab: Evaluation of the Gas Law Constant Dr. Monzyk Due 06/25/2012 Purpose: The purpose of this lab is to evaluate the gas law constant. The ideal gas law is represented as PV=nRT, where R represents the gas law constant. To determine R, we must find the other parameters...
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  • ChemQuest 19-27
    four times your answer to question 2. 4 + 4(7) = 4 + 28 = 32 4. Verify that there are 32 electrons pictured in the drawing of CCl4. Count each dot in the picture above: there are 24. There are also 8 more electrons represented by the 4 lines (each line represents two electrons). 5. Find the...
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  • study guide chem
    Excited electrons in the atom are in energy levels higher than their lowest energy level Heat applied; e- move from energy level to energy level Lab: color represents energy and elements Ground State Electrons in an atom are in its lowest energy level. In other words Takes the least amount of...
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  • Module 2 Notes
    electrons, Rutherford: Gold foil experiment, discovery of nucleus 02.02 Describe the structure of atoms in terms of protons, neutrons, and electrons. Differentiate among particles in terms of their mass, electrical charges, and locations within...
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  • lalal
    Reporting Laboratory Data ......................................................................... Types of Error…………………………………………………………………... AP Lab Assessment Guidelines ................................................................. IB Sciences Assessment Tables …………………………………………….. Sample Laboratory...
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  • Organic Chemistry
    the organic compound urea from the inorganic salt ammonium cyanate by evaporation: 2 After this, many organic compounds were synthesized in the lab. Today, Organic Chemistry is the chemistry of the compounds of carbon. The human body is largely composed of organic compounds Organic chemistry plays...
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  • Asprin Synthesis
    Name Period Date The Synthesis of Aspirin Background Pharmaceutical research labs perform chemical reactions between organic molecules that contain mostly carbon. Since the atoms in organic molecules tend to be nonmetals, then the bonds that hold them together are covalent bonds. Only a few...
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  • Khaasd
    NO.: General Chemistry I Lecture, CHEM 124 INSTRUCTOR: Office: Phone: Office Hours: COURSE DESCRIPTION: Students will relate atomic structure to chemical systems, calculate the amount of material used in chemical reactions, use the periodic table as an aid to understanding chemical systems...
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  • Chemistry 2202 Practice Exam
    undergoing a change in mass. Which describes the original solution? (A) (B) (C) (D) monounsaturated saturated supersaturated unsaturated 12. A lab technician prepares a dilute solution of hydrochloric acid. If 50.0 mL of 2.50 mol/L hydrochloric acid is added to 450.0 mL of water, what is the new...
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  • Chemistry
    Bohr Model Atomic Mass & Atomic Mass Number Types of Chemical Bonds Ionic vs Covalent Bonds Rules for Assigning Oxidation Numbers Lewis Structures and Electron Dot Models Introduction to Molecular Geometry What Is a Mole? More About Molecules & Moles Law of Multiple Proportions Stoichiometry ...
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  • Chem
    unique number of protons in its nucleus * Isotopes: same atomic number but different mass number (and neutron number). Can make many isotopes in lab. Some occur naturally. * Atomic mass: mass of 1 atom * Amu: atomic mass unit = Dalton. * 6.022 E 23 amu = 1 g * Standard: the isotope...
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  • Anatomy and Physiology Lab Manual
    edu/biology/Wags/histopage/colorpage/cin/cin.htm To be used in Anatomy & Physiology-BIOL 165 & 166 labs only Not to be used as a source of reference Not to be sold or distributed outside of the classroom Lecturers: Nadia Washington, MSc. Delano Lewis, PhD. Disclaimer The exercises used in this...
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