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Published on Aug 21, 2010
Chemistry: Stoichiometry. Atoms and molecules. Unit conversion, metric prefixes, equivalence statements. Atomic mass unit (amu), mole, Avogadro's number, molar mass. Converting between grams and moles; converting between grams and atoms or molecules
This is a recording of a tutoring session, posted with the student's permission.
(1) Atoms, protons, electrons, atomic number, cations, anions (2) Continued. Atomic mass unit (amu), neutrons, isotopes, atomic masses (3) Continued. Mole, Avogadro's number (4) Continued. Charge, elementary charge unit (e) (5) Unit conversion (also known as "dimensional analysis"), equivalence statements, metric prefixes (6) Unit conversion continued (7) Continued (8) Another unit conversion example (9) Another example (10) Molar mass. Converting between grams and moles: an example (11) Two more examples (12) Converting between atoms and grams: an example (13) Continued (14) Another example (15) Molecules, molar mass (16) Continued (17) A problem (18) Continued (19) Continued (20) Equivalence statements you can derive from molecular formulas (21) Continued (22) More problems (23) Continued (24) Continued. More problems (25) More problems (26) Continued