Chem 120 Objectives - Exam 1 - Chapters 1 - 4
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Know Significant Figure Rules and be able to apply them rounding
calculated numerical answers to the correct number of significant figures
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Be able to apply dimensional analysis
in problem-solving
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Be able to apply density and percent in problems involving dimensional
analysis
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Distinguish between chemical and physical changes
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Understand and distinguish between precision and accuracy
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Calculations involving Atomic Mass of elements
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Know experiments discussed that gave information about atomic structure
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Know basic facts related to the Periodic Table
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Determine number of subatomic particles for isotopes of elements or
ions
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Nomenclature of ionic compounds, acids, and covalent (molecular)
compounds
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Calculate quantities based on stoichiometric relationships for formulas
and balanced chemical equations involving mass, moles, number of atoms, and
molarity
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Calculations involving limiting reagents, theoretical yield, and
percent yield
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Calculations of percent composition for substances
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Calculations involving empirical and molecular formulas
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Writing and balancing chemical equations
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Know the elements that are exist as diatomic molecules
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Write molecular and net ionic
equations for precipitation reactions and acid base reaction
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Know how to make a specified volume of a solution having a given
molarity
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Solve dilution problems
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Solve stoichiometry problems involving molarity
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Determine the oxidation number of elements in compounds
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Determine the oxidizing and reducing agent in reactions
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Balance redox equations using the half-reaction method for acid and
base solutions
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Describe how to make a volumetric solution of a stated concentration
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Understand and apply the uncertainty of volumetric lab equipment
(pipet, graduate cylinders, etc)
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Calculate percent difference (also called percent error) for
experimental quantities vs. theoretical quantities