weighted percentages ; scientific notation (using sig figs) ; percent error calculations ; Significant figures; Precision, accuracy, measuring with sig figs (only 1st 10 minutes are important); Dimensional analysis (conversions!) Creating a linear equation from a graph; Buoyancy: why/how something floats
Also helpful to keep in mind in case you are not good with your calculator: mulitplication/division with scientific notation
Going above and beyond for AP Chem kids: Adding/subtracting with sig figs
Grams to moles moles and atoms what are moles, molar mass, etc basics of atoms/the nucleus Isotopes and avg atomic mass history of atomic models alpha, beta, gamma decay strong nuclear force vs electrostatic force (called electromagnetism in video) strong force video 2 using band of stability life cycle of stars- fusion, gravity and pressure
atomic radius Ionization Energy electronegativity shielding short; shielding longer atomic trends in general
spectrum and c= lamba nu, E= hv, etc (note: he uses "f" for frequency and not the greek nu); photoelectric effect photoelectric effect video #2 Energy video clip absorption/emission and spectal lines another absorption/emission explanation Temperature/Heat video clip Solids liquids and gases conduction/convection/radiation in general conduction/convection/radiation in fire Plate tectonics/convection video
Showing the formation of ionic bond (2:08-5:09) Naming ionic compounds with roman numerals naming regular covalent compounds and acids all about VSPER/determing shape and angles bond polarity and polar/non polar molecules intra vs intermolecular forces grams to moles conversions grams to molecules/formula units conversions ionic compounds and their properties video 1 ionic compounds and their properties video 2
Unit 6: States of matter, phase changes, and deeper IMF
Solids liquids and gases KMT/phase change video from classphase diagrams and 3 phases at the particle level, IMF and boiling points
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Unit 7: Solutions, molarity, solubility
solubility curves- sat, unsat electrolyte review molarity dilutions and M1V1 = M2V2
Unit 8: Chemical reactions and Stoichiometry
Balancing chemical equations class video (with worksheet to go along) Types of reactions single displacement reactions double displacement reactions using solubility rules to predict products stoichiometry moles to moles stoichiometry grams A grams B percent yield
Unit 9: Thermochemistry
Energy video clip Temperature/Heat video clip conceptual heat, specific heat, and more conceptual specific heat conceptual heat exchange Calorimetry heating curve calculations, and other thermo problems 3 step heating curve calculation Heating curve calculation (note: they use latent heat in kJ/MOL instead of kJ/g, so there is an extra step to covert kJ/mol into kJ/g like what we do).
Using Phase Change Materials (this is a commercial for a company, but it gives GOOD info)
Mini Unit 10: Gas Laws and the atmosphere
pressure/volume/temp relationships using PV=nRT gas laws with some problems
Unit 11: Acid/Bases and Equilibrium
Titration calculations acids, bases, and pH acid/base info; pH calc and more naming acids bronsted-Lowry only
Crash course video on equilibrium and Le Chatelier Equilibrium constant work collision theory reaction rates