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Presentation transcript:

How should I review? Look Over - Class notes - Homework from text - Worksheets - Lab reports - Quizzes Check the website: manningsscience.com

Terms  Precision  Accuracy  Significant figures/digits  Scientific notation  Unit conversions

 Terms Atomic mass Avogadro’s number Molar mass Mole  Formulas n= m M n= N N A m = N M N A

 Terms Anhydrous Empirical formula Hydrate Law of definite proportions Mass percent Molecular formula Percentage composition

 Problem types Find % composition from chemical formula - % composition from experimental data - EF from MF - EF from % composition - MF from EF and molar mass - % composition of hydrate - Carbon-hydrogen combustion analysis

Problem types Find.... -% composition from chemical formula -% composition from experimental data -EF from MF -EF from % composition -MF from EF and molar mass -% composition of hydrate

 Terms Actual Yield Excess reactant Mole ratios Percentage yield Stoichiometry – Mass-mass, mole-mole, mass- mole, etc… Stoichiometric coefficients The Mole Path Limiting reactant Theoretical yield

 Problem types Find Coefficients of balanced chemical equation for mole ratio - Amounts of reactants and products in a reaction - The limiting reactant and excess reactant - Percentage yield of reaction %yield= actual yield x 100 theoretical yield