Study guide for exam 3 Chem 1212 Fall 2014 (chapters 3‚4‚ 14‚15) Chapter 3 Nomenclature ionic compounds‚ molecular compounds‚ simple organic compounds‚ hydrates‚ acids Know the names and charges of the polyatomic ions Calculation molecular weight mw Molar mass of compound Number particles = NA x n Mass % Determination of empirical formula and molecular formula Combustion analysis Balancing equations Chapter 4 Limiting reactant Mole to mole conversion from reaction stoichiometry Theoretical yield
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anatomic terms used in this course. 9. Be able to define: pH ionic bond proton monosaccharide disaccharide Buffer covalent bond electron polysaccharide glycerol acid hydrogen bond neutron fatty acid nucleic acid base anion organic inorganic enzyme cation Atomic number Atomic weight salt 10. Be able to recognize how buffers work (chemically) to prevent dramatic changes in pH. 11. Be able to recognize the location / function / composition of each of the following in the cell:
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must be sufficiently soluble in water. 3. Good fertilizers should contain nothing injurious to plants. Theory of Chemical Fertilizers The majority of the chemical fertilizer whether simple or mixed are in organic compounds‚ the generally contain cation likes Ca2+‚ K+‚ NH4+ etc. and are soluble in water. Therefore‚ these can be identified from their aqueous solution by the regular systematic scheme used for qualitative mixture analysis. Analysis of Chemical Fertilizers All the plants need nutrients
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the period on the periodic table tell you about an atom? What does the group/family on the periodic table tell you about a Group A element? Define molecule Define compound Define ionic bond and describe how they are formed Define ion Define cation Define anion Define polyatomic ion Define covalent bond and describe how they are formed Define electronegativity and describe how it is used to determine if a bond is ionic‚ polar covalent or nonpolar covalent Define polar covalent bond Define nonpolar
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Checklist for Lecture Exam 1 Chapter 1 ANATOMY : The study of structure PHYSIOLOGY: The study of function. Levels of organization CHEMICAL LEVEL: includes Atoms ( C‚O‚ H‚ N)‚ the smallest units of matter. These 4 are essential to life. Atoms bond together to form MOLECULES. CELLULAR LEVEL: Molecules combine to form Organelles. Organelles function together to form a CELL‚ the smallest unit of life. There are different types of cells with different functions. A cell consists of
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Structural Effects on Stability and Reactivity. Organic Chemstry Laboratory Structural Effects on Stability and Reactivity Introduction The concepts of stability and reactivity are fundamental to understanding chemistry. In this chapter we consider first the thermodynamic definition of chemical stability. We then consider chemical kinetics (Section 3.2) and how it can provide information about reactivity. We also explore how structure influences stability and reactivity. We want to learn how
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This is formed because copper looses the one valence electron and forms a cation. A cation is formed when an atom looses its valance electrons and as a result the atom is positive. If the ion was gaining two electrons then the ion would be negative. A negative ion is called an anion. Copper has a boiling point of 3200 Kelvin. This is a very average boiling point for many transitions metals. The melting point for copper is 1357
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Fischer Esterification is a reaction between a carboxylic acid and an alcohol to form an ester. Refluxing the two reactants with an acid catalyst forms the ester. Fischer Esterification was discovered in 1895 by the German chemist‚ Emily Fischer and Arthur Speier. The reaction is also sometimes known as Fischer-Speier Esterification. The major components of almost all natural flavors and odors are esters. These fragrant esters are formed by the Fischer Esterification reaction. Saponification
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Abstract The photocatalytic degradation of phenol has been tested primarily with titanium dioxide (TiO2) either alone or in combination with other materials. In this work‚ Mg/Al hydrotalcites prepared by two methods using inorganic (HC) or organic (HS) chemical reagents‚ along with mixed oxides produced by calcination of these products (HCC and HSC) were mixed with titanium isopropoxide to obtain hydroxide-TiO2 compounds (HCC-TiO2 and HSC-TiO2) to test their photocatalytic activity compared with
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The hypothesis If a chemical reaction occurs‚ then there will be indicators of a chemical change‚ was supported throughout this experiment. Throughout this experiment there were several reactions that took place‚ and an indicator of such chemical reactions could be seen throughout each one. The first piece of identifiable evidence was present in the first step‚ which was when copper (II) nitrate and sodium hydroxide were combined. When stirred‚ a blue precipitate formed at the bottom of the test
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