AP Chem Objectives 2012
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UNIT: Intro and Refresh
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Textbook SectionsMajor TopicDetailed Objectives
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SafetyIdentify, locate, and know how to use laboratory safety equipment. Includes aprons, goggles, gloves, fire extinguishers, fire blanket, safety shower, eye wash, broken glass container, and fume hood.
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Describe procedures that should be taken in lab emergencies: fire in lab or on person, chemical spills on floor, counter (distinguish between corrosive material and flammable material), chemical spill on skin, eyes, gas leak, toxic fume inhalation, cut skin, broken glass, unconscious person
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Describe the purpose and use of an MSDS
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1.5 to 1.8Sig figsCan report a measurement to the appropriate number of significant figures (remembers to estimate a digit)
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Precision and accuracyReport the degree of uncertainty for a given piece of lab equipment (some you need to know: balance: ± 0.01 g, some have graduated scales: graduated cylinder, some say on the glassware: beaker)
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Metric systemExplain the purpose of uncertainties
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Interpret the uncertainty in the data (meaning of a very large or very small uncertainty, precision of results)
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Determine whether a set of data is accurate, precise, both or neither
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State the purpose of repeated trials
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State two definitions of precision
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Calculate average
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Calculate percent error to determine experiment's accuracy
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Explain the purpose of significant figures, including giving example of their use/importance.
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Count the number of significant figures in a given measurement.
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Can round a number to a given number of significant digits
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Can state and use the rule for adding and subtracting measurements.
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Can state and use the rule for multiplying and dividing measurements.
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Dimensional analysisUse dimensional analysis to convert units (changing a single unit g → lbs)
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change a single unit in a multi-unit number ( g/mol → lbs/mol)
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Change both units in a multi-unit number (g/mol → lbs/atom)
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Use dimensional analysis with metric system
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Define derived unit
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Density and other derived unitsCalculate density of a substance
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Use density to relate mass and volume
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2.3 to 2.7BasicsDistinguish between pure substance, mixture, compound, element, atom, molecule, solution, ion, molecular formula, formula unit
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Distinguish between organic and inorganic compounds
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Outline the differences between ionic and covalent bonding
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Explain differences in naming, structure and basic properties of ionic and covalent bonding
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Predict ions formed based on PT location
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Label families on periodic table: metals, nonmetals, metalloids, halogens, nobel gases, alkali metals, alkaline earth metals, transition metals
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identify # of electrons, protons, neutrons
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Outline basic structure of atom (no orbitals)
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Define isotope
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Calculate average atomic mass based on mass spec data
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Outline how mass spectrometer works
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State 7 diatomic gases
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Distinguish between periods and groups
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LO 1.14 The student is able to use data from mass spectrometry to identify the elements and the masses of individual atoms of a specific element. [See SP 1.4, 1.5]
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