F16Exam3StudyGuide - BiggB Chem1AX16 E3studyG Chem1A Exam 3...

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BiggB Chem1AX16 E3studyG Chem1A Exam 3 study guide (not comprehensive, exhaustive or binding) Chapter 7: Stoichiometry—Mass Relationships and Chemical Reactions Know the components of a chemical equation: reactants, products, phases, and coefficients Understand the relationship between the laws of multiple proportions and conservation of mass and balancing chemical equations Recall (from Chapter 2) the definition of a mole and how to compute molar mass Define stoichiometry Understand the information contained in a balanced chemical equation Use the inspection and inventory method to balance chemical equations Write balanced chemical equations for combustion reactions Calculate the mass (and moles) of a product that would be formed from a given mass of a reactant using stoichiometric relations Calculate the mass of a reactant needed to produce a given amount of a product based on stoichiometric relations Define percent composition and calculate it from a chemical formula Define empirical formula and determine it from percent composition data Differentiate between the empirical and the molecular formula Write empirical formulas given the molecular formulas Determine the molecular formula for a compound given the empirical formula and the molecular mass Describe how combustion analysis provides information about elemental composition Use the mass of CO 2 and H 2 O (or mass percent of C and H) from combustion analysis to Page 1 of 5
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BiggB Chem1AX16 E3studyG calculate the mole ratio of C:H in hydrocarbons and to determine an empirical formula Use the information from combustion analysis and the molar mass of a compound to
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