Stoichiometry Course Overview

Introduction

• Movie [.mov] describing an overview of course objectives
  Old version [.mov] (for people interested in how the course evolved)
• Text Page 1 introducing the course
• Short answer comprehension check on objectives (1)[.html]
• Short answer comprehension check on objectives (2)[.html]
• Short answer comprehension check on objectives (3)[.html]
• Short answer comprehension check on stoichiometry toolset [.html]
• Movie introducing the concept of the mole [.mov]
• Multiple choice comprehension check on the mole [.html]
• Short answer easy calculation using the mole concept (1)[.html]
• Short answer easy calculation using the mole concept (2)[.html]
• Movie explaining dimensional analysis[.swf]
• Multiple choice comprehension check on dimensional analysis [.html]
• Movie explaining molecular weight[.swf]
• Short answer comprehension check on molecular weight [.html]
• Short answer comprehension check on molecular weight [.html]
• Movie explaining solution stoichiometry[.swf]
• Short answer easy calculation on solution stoichiometry [.html]
• Movie explaining composition stoichiometry[.swf]
• Short answer comprehension check on composition stoichiometry [.html]
• Multiple choice comprehension check on composition stoichiometry [.html]
• Movie explaining reaction stoichiometry[.swf]
• Short answer easy calculation on reaction stoichiometry [.html]
• Short answer easy calculation on reaction stoichiometry [.html]

MW, Density and Composition Stoich: WHO Safety Limits

• Text Page 1 explaining Bangladesh water problem.
• Text Page 2 explaining details of Bangladesh water problem.
• Text Page 3 explaining health effects of Bangladesh water problem.
• Text Page 4 explaining the student's task.
• Movie introducing virtual lab
• Example movie[.mov] [.swf] converting units to determine if a sample is below WHO limits for Arsenic.
  (Note this movie has a math error, the correct answer should be 84.14)
• Virtual Lab problem I [Traced version]: Converting units to determine if a sample is below WHO limits for Arsenic (one specie).
• Virtual Lab problem II [Traced version]: Converting units to determine if a sample is below WHO limits for Arsenic (two species).
• Text Page 10 questioning whether density measurements might be an easy and inexpensive way to determine arsenic levels in water.
• Example movie [.mov] [.swf] showing density calculations and the vlab
• Virtual Lab problem III [Traced version]: Creating a density table to measure the concentration of arsenic in a solution
• Text Page 11 discussing the concepts of sensitivity and specificity in analytical chemistry.
• Reflective responses: Is density a sensitive measure of concentration? Is it a specific measure? (Students will give answer and then read expert answer)
• Short answer comprehension check on sensitivity in analytical chemistry [.html]
• Short answer comprehension check on selectivity in analytical chemistry [.html]

Solution Concentration: Arsenic Remediation

• Text Page 12 discussing the remediation methods developed by Dr. Islam.
• Movie describing concentration
• Text Page 13 discussing how to design an experiment to determine how much arsenic can be absorbed by a given mass of powder.
• Virtual Lab problem IV [Traced version]: Determining how much water can be purified by a filter

Empirical Formula and Percent Composition

• Text Page 14 introducing the concept of empirical formula.
• Empirical Formula Tutor problem [Traced version]: Mineral composition
• Intro to empirical formula determination [.mov]--do with a tutor? (Send to Candace/Ross, and ask if it can be parameterized to work for any formula)
• Text Page 15 showing a worked example of an empirical formula problem.
• Short answer easy comprehension check on empirical formula (1)[.html]
• Text problems with Flash tutor
• Short answer easy comprehension check on empirical formula (2)[.html]
• Text problems with Flash tutor

Stoichiometric conversion

• Example video: single titration [.mov]
• Virtual Lab problem V [Traced version]: Colorimetric titration
• Example video: Oxidation of one form of arsenic to another [.mov]
• Virtual Lab problem VI [Traced version]: Arsenic speciation by colorimetric titration
  [was Practice problems: oxidation of one form of arsenic to another--vlab (started already).]
• Example video: oxidation of a mixture: determine the ratio [.mov]
• Practice problem: oxidation of a mixture: determine the ratio
• Short answer comprehension check on selectivity of reaction stoichiometry [.html]
• Short answer comprehension check on specificity of reaction stoichiometry [.html]

Limiting reagents

• May want to go out of scenario here, and do some standard limiting reagent problem. (Look at current problems to see if we have vlab already.)
• Practice problem [Traced version] with limiting reagent.
• Back to scenario for Double titration.
• Virtual Lab problem VII [Traced version]: Reverse titration

Exit interview

• Multiple choice comprehension check on composition stoichiometry [.html]
• Multiple choice comprehension check on reaction stoichiometry[.html]
• Multiple choice comprehension check on what chemists do [.html]