Problem Set Videos
Problem Set 1: Units and Measurements (16 Minutes)
The metric system, SI units, Kelvin scale, volume and density.
Problem Set 1 Worksheet
Problem Set 2: Expressing Uncertainty (Sig Figs, Scientific Notation and Rounding) (23 Minutes)
Rounding, significant figures, and dimensional analysis (unit conversions).
Problem Set 2 Worksheet
Problem Set 3: Chemical Vs Physical Change and Classifying Matter (13 Minutes)
Classifying matter as element, compound, homogeneous and heterogeneous mixtures; chemical versus physical changes.
Problem Set 3 Worksheet
Problem Set 4: The Periodic Table, Isotopes, and Electron Configuration (21 Minutes)
Using the periodic table; protons, neutrons and electrons; writing symbols for isotopes; writing electron configurations.
Problem Set 4 Worksheet
Problem Set 5: Writing Chemical Formulas for Ionic Compounds (20 Minutes)
Naming and writing formulas for cations, anions and ionic compounds; an introduction to polyatomic ions; the formation of ionic compounds.
Problem Set 5 Worksheet
Problem Set 6: Writing Chemical Formulas for Molecular Compounds and Acids (22 Minutes)
Naming and writing formulas for molecular compounds, binary acids and oxyacids; molecules versus formula units.
Problem Set 6 Worksheet
Problem Set 7: Writing Balanced Chemical Equations (25 Minutes)
Writing and balancing chemical equations.
Problem Set 7 Worksheet
Problem Set 8: Molar Mass, Mole Ratios and Stoichiometry (41 Minutes)
Calculating molar masses, finding mole rations, and stoichiometry problems.
Problem Set 8 Worksheet
Problem Set 9: Lewis Structures, Electron Pair Geometry and Molecular Geometry (35 Minutes)
Drawing Lewis structures, analyzing electron pair geometry and determining molecular geometry (shape).
Problem Set 9 Worksheet
Problem Set 10: Bond Polarity and Polar Vs Nonpolar Molecules (40 Minutes)
Calculating change in electronegativity, determining if a bond is polar or nonpolar, indicating partial charge build-up, and analyzing molecules for polarity.
Problem Set 10 Worksheet
Problem Set 11: Intermolecular Forces of Attraction and Heating Curves (32 Minutes)
Analyzing molecules for intermolecular forces of attraction (London dispersion forces, dipolar forces, and hydrogen bonding), general information given in heating curves, and understanding phase changes.
Problem Set 11 Worksheet
Problem Set 12: Solutions, Concentration and Osmosis (33 Minutes)
Solutions, solute, solvent; the dissolving process; concentration in molarity, osmolarity, percent mass volume and percent volume; dilutions; osmosis, isotonic, hypotonic and hypertonic solutions.
Problem Set 12 Worksheet
Problem Set 13: An Introduction to Acids and Bases, pH and Buffers (53 Minutes)
Writing balanced equations for acid-base neutralization reactions, solution stoichiometry; classifying acids, bases and salts; classifying electrolytes and non-electrolytes; classifying strong versus weak acids and bases; using the pH scale, and calculating pH and hydronium ion concentrations; determining what components can be used to make a buffer.
Problem Set 13 Worksheet
Problem Set 14: An Introduction to Energy in Chemical Reactions (17 Minutes)
Drawing energy diagrams for exergonic and endergonic reactions; labeling activation energy and Gibbs free energy change; understanding the effect of temperature, concentration and addition of a catalyst on reaction rates.
Problem Set 14 Worksheet
Problem Set 15: An Introduction to Nuclear Chemistry (20 Minutes)
A review of atomic structure and isotopes, and writing nuclear reactions for alpha, beta and gamma decay.
Problem Set 15 Worksheet
Problem Set 16: An Introduction to Organic Chemistry and Nomenclature of Hydrocarbons (45 Minutes)
Naming and drawing expanded, condensed and line structures for straight chained and branched hydrocarbons; naming and drawing cis-trans isomers (geometric isomers).
Problem Set 16 Worksheet
Problem Set 17: An Introduction to Organic Functional Groups (27 Minutes)
Recognizing functional groups; drawing molecules with a functional group in expanded, condensed and line structure; writing reactions for hydrocarbons.
Problem Set 17 Worksheet
Problem Set 18: Chirality, Stereoisomers and Fischer Projections (22 Minutes)
Drawing Fischer projections and analyzing relationships between stereoisomers (enantiomers and diasteromers); determining if a molecule is meso.
Problem Set 18 Worksheet
Problem Set 19: Monosaccharides (15 Minutes)
Problems covering D versus L enantiomers, dextrorotatory versus levorotatory, isomers, and cyclic hemiacetal formation in monosaccharides.
Problem Set 19 Worksheet
Problem Set 20: Disaccharides and Polysaccharides (22 Minutes)
Labeling hemiacetals and acetals; describing the structure of common disaccharides and polysaccharides; classifying carbohydrates as monosaccharides, disaccharides and polysaccharides.
Problem Set 20 Worksheet
Problem Set 21: Lipids (17 Minutes)
Drawing fatty acids, triglycerides and sterols; understanding the definitions for saturated and unsaturated (including monounsaturated and polyunsaturated) fatty acids; understanding the source of cis and trans fatty acids in foods.
Problem Set 21 Worksheet
Problem Set 22: The Lipid Bilayer (15 Minutes)
Drawing and labeling components of the lipid bilayer; labeling the hydrophobic and hydrophilic areas of the lipid bilayer; problems related to passive transport (simple diffusion and facilitated diffusion) and active transport.
Problem Set 22 Worksheet
Problem Set 23: Proteins (20 Minutes)
Drawing amino acids and dipeptides; describing the primary, secondary, tertiary and quaternary structure of a protein; describing the structural changes due to denaturation.
Problem Set 23 Worksheet
Problem Set 24: Enzymes (9 Minutes)
Problems covering enzymes, cofactors and coenzymes, and basic terminology.
Problem Set 24 Worksheet
Problem Set 25: Nucleic Acids (17 Minutes)
Practice distinguishing between bases, sugars, nucleosides and nucleotides; describing the structures of DNA and RNA; complementary base pairing.
Problem Set 25 Worksheet
Problem Set 26: Replication, Transcription and Translation (19 Minutes)
Problems covering DNA replication, transcription and translation; using the genetic code to decipher protein synthesis.
Problem Set 26 Worksheet
Problem Set 27: Metabolism, Krebs Cycle and the Electron Transport Chain (20 Minutes)
Problems covering catabolic processes, focusing on Krebs cycle, the electron transport chain and oxidative phosphorylation; calculating ATP yield from Krebs cycle, the electron transport chain and oxidative phosphorylation.
Problem Set 27 Worksheet
Problem Set 28: Carbohydrate Metabolism and Glycolysis (21 Minutes)
Problems covering carbohydrate metabolism, with an emphasis on the catabolic processes of glycolysis, pyruvate oxidation, Krebs cycle, electron transport chain and oxidative phosphorylation; calculating ATP yields for complete contabolism of glucose.
Problem Set 28 Worksheet
Problem Set 29: Lipid Metabolism and Fatty Acid Oxidation (13 Minutes)
Answering questions about lipid catabolism, and calculating total ATP yields for complete catabolism of palmitic acid.
Problem Set 29 Worksheet
Problem Set 30: Amino Acid Metabolism (9 Minutes)
Problems covering metabolism of amino acids including: transamination, oxidative deamination, Krebs cycle, electron transport chain, and the fate of nitrogen and carbon skeletons.
Problem Set 30 Worksheet