Introduction to Chemical Reactions

开始时间: 04/22/2022 持续时间: 8 weeks

所在平台: CourseraArchive

课程类别: 物理与地球科学

大学或机构: Duke University(杜克大学)

授课老师： Dorian A. Canelas

课程主页: https://www.coursera.org/course/chem991

课程评论：没有评论

第一个写评论关注课程

课程详情

This is the first part of a two part introductory course for students with limited or no background in chemistry; in this part of the course, chemical reactions, stoichiometry, nomenclature, and chemical problem solving will be emphasized. The goal of the course sequence is to prepare students for further study in chemistry as needed for many science, health, and policy professions. Topics include introductions to atoms, molecules, ions, the periodic table, stoichiometry, and chemical reactions.

Each week the course will contain a series of short video lectures with interactive questions embedded in the lectures. Students will have opportunities to practice each week via exercises at two levels of depth: one set of foundational problems directly related to lecture videos and another set of problems requiring more synthesis of ideas and application of pre-existing algebra skills. Students who complete the course while earning an average of 70% or more on the foundational problem sets and exam will receive a signed statement of accomplishment. Students who complete the course, participate fully in the peer-reviewed writing assignment, and achieve an average of 85% or more on the foundational problem sets, advanced problem sets, and exam will receive a signed statement of accomplishment with distinction.

Course icon from Wikimedia commons.

课程大纲

Week One: Introductions with an overview of scientific methods, scientific notation, measurements, units and unit conversions, using proper significant figures to indicate precision, general concepts in matter and energy including definitions of atoms, elements, molecules, compounds, and moles, chemical formula stoichiometry, basic layout of the periodic table, examples of endothermic and exothermic reactions, and Coulomb’s law.

Week Two: More study of atomic structure including ions and isotopes, information on the organizations of the periodic table of elements including some periodic trends (orbital energy, ionization energy, electronegativity, and atomic radius), identification of the subatomic particles most critical to chemical reactions, and introduction to ionic bonding.

Week Three: Determination of oxidation states, comparison of ionic and covalent bonding concepts, nomenclature for both ionic and molecular compounds including those containing polyatomic ions, and introduction to calculations involving formula mass, density, and/or heat capacity.

Week Four: Introduction to chemical composition calculations (compound stoichiometry); application of mole ratios and more practice with gram/mole and mass percent calculations; determination of empirical and molecular formulas; balancing chemical reaction equations.

Week Five: No new topics this week. Optional peer-reviewed writing assignment due for students interested in earning a statement of accomplishment with distinction.

Week Six: Practice writing and balancing chemical reaction equations for dissolution processes; reaction stoichiometry application exercises; introduction to equilibrium constants using the solubility product constant as an illustration; electrolytes.

Week Seven: Introduction to precipitation, acid-base, and redox reactions; more practice applying reaction stoichiometry concepts; reaction calculations including limiting reagent, yield, and enthalpy changes.

Week Eight: No new topics this week. Complete exam and course survey.

课程评论(0条)

课程简介

This is an introductory course for students with limited background in chemistry; basic concepts involved in chemical compositions, periodic trends, reactions, and quantitative problem solving will be emphasized with the goal of preparing students for further study in chemistry.