วีดีโอ

Professor Poe works some examples of when you must move lone pairs to become bonds to give an atom an octet in a Lewis structure with the N2 molecule, and COCl2. She also explains how to calculate the formal charge of an atom in a Lewis structure.

Professor Poe explains the first 3 quantum numbers (which are solutions to the Schrodinger equation, that describe orbitals for electrons in an atom).

Professor Poe goes over some important discoveries and scientists in the development of quantum theory, building to the behavior and placement of electrons in atoms.

Professor Poe gives a brief explanation of Bohr's theory of quantized energy levels for electrons in an atom, including line emission spectra for elements.

Professor Poe explains the properties of "heat capacity" (symbolized by "C"), and "specific heat capacity" (symbolized by "c").

Professor Poe explains what "heat" is, and the definitions of "endothermic" and "exothermic" reactions (with the sign values of "q").

Professor Poe explains some basic definitions of energy, the units of energy used in chemistry, and what chemists define as the "system" and "surroundings". Includes the statement of the First Law of Thermodynamics.

Professor Poe goes over the postulates of the Kinetic Molecular Theory (for ideal gas behavior), and discusses under which conditions gases do not behave ideally.

Professor Poe explains the difference between the words "diffusion" and "effusion" for gases; includes a worked example of using Graham's Law to calculate the ratio of rates of effusion in a gas mixture.

Professor Poe explains the speed of molecules of gases; in particular, how to calculate the root-mean-square speed of a gas

Professor Poe works an example of a stoichiometry problem with a gas collected over water.

Professor Poe works through examples of stoichiometry with gases; includes using the Ideal Gas Law, and when you can use Molar Volume (i.e. at STP).

Professor Poe discusses how to determine the charge of some metal cations that can be variable, and how to include that information in the name of the ionic compound.

Prof. Poe covers the IUPAC nomenclature rules for ionic compounds (how to name and write formulas).

CHEM1405 Poe 2024FA Unit 5, sect 3 Polyatomic Ions

CHEM1405 Poe 2024FA Unit5, sect 3 Predictable Monatomic Ion Charges

2024 10 16 15 41 CHEM140582H1 Poe 2024FA Unit5, sect 3 Intro to Ions and Ionic Compounds 0d3a1b9

CHEM1405 Poe 2024FA Unit5, sect 3 Aqueous Sol'ns and Electrolytes

CHEM1405 Poe 2024FA Unit5, sect 2 Properties of Water

CHEM1405 Poe 2024FA Unit 5, section 2 - Hydrogen Bonding

CHEM1405 Poe 2024FA Unit 3 Lab Demo: H2O2, Elephant's Toothpaste

CHEM1405LX03L Poe 2024FA Unit 1 Lab, Demo Setting Hand Sanitizer on Fire

CHEM1405LX03L Poe 2024FA Unit 1 Lab, Part B Methane Bubbles

CHEM14120001 Poe Fall 2 2023 sect.10.3 heating and cooling curve calc's; 10 4 phase diagrams

CHEM14120001 Poe Fall 2 2023 sect. 10.3 - more C C equ'n; calculate q, and a Heating Curve

CHEM1411 Poe Video - Exceptions to the octet rule in Lewis structures