This in-class activity was designed for a Chemical Communications course with second-year students. It is the second part of a two-week segment in which students learn how to use ChemDraw (or similar drawing software to create digital drawings of molecules).
This is a flipped classroom module that covers the concepts of quantum numbers, and radial and angular nodes. This activity is designed to be done at the beginning of the typical first quarter/first semester general chemistry course (for an atoms first approach; if instructors use a traditional course structure this unit is likely done towards the middle/end of the first quarter/semester). Students will be expected to have learned the following concepts prior to completing this activity:
a) quantization of energy in the atom and the Bohr model of the atom;
This is a flipped classroom activity that is intended for use in a college-level first semester/first quarter general chemistry course, and aims to provide a real-world context for thermochemistry concepts by focusing on the problem of producing hydrogen fuel in a sustainable manner. Current industrial production of hydrogen relies on extracting hydrogen from hydrocarbon molecules. Producing hydrogen in this manner brings about the obvious problem of relying of fossil fuels for a “sustainable” fuel.
This is a flipped classroom activity intended for use in a first semester general chemistry course. Students are expected to have prior knowledge in determining the molar mass of compounds, how to carry out mole/gram conversions, and how to write balanced chemical reactions. The activity includes:
1) pre-lecture learning videos that guide students through carrying out basic stoichiometric calculations, determining the limiting reactant, and determining the percent yield of a reaction;
Inorganic chemists often use IR spectroscopy to evaluate bond order of ligands, and as a means of determining the electronic properties of metal fragments.
Pulsed Gradient Spin Echo (PGSE) DOSY is a NMR technique used for determining the hydrodynamic radius of a molecule in solution by measuring the rate of diffusion. This technique requires a standard, usually tetrakis(trimethylsilyl)silane (TMSS). This activity will cover the basics of how PGSE works and includes built in animations to demonstrate how the nuclear magnetization is affected. Each slide has comments explaining the content for the user's convenience.
These five slides are intended to share a visual scaffolding that I developed to help my general chemistry students identify what calculations are needed to solve stoichiometry problems.
This module offers students in an introductory chemistry or foundational inorganic course exposure to recent literature work.
This module offers students an introductory chemistry or foundational inorganic course exposure to recent literature work.
This module offers students in an introductory chemistry or foundational inorganic course exposure to recent literature. Students will apply their knowledge of Lewis dot structure theory and basic thermodynamics to compare and contrast bonding in SiO2 and CO2.