Energy Calculations (2)
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Transcript of Energy Calculations (2)
Lone Star Chemistry Solutions
A Dozen or More A Dozen or More CalculationsCalculations
Energy – Acid and Base ReactionsEnergy – Acid and Base ReactionsMason, Koeck, and KulhanekMason, Koeck, and Kulhanek
Lone Star Chemistry Solutions
BCCEBCCEAugust 1-5August 1-5
University of University of North TexasNorth Texas
Denton, TexasDenton, Texas
Lone Star Chemistry Solutions
TEKS Development TEKS Development and Correlation to and Correlation to
CCRSCCRS Lone Star Lone Star Chemistry Chemistry SolutionsSolutions
https://callevents.unt.edu/ei/getdemo.ei?https://callevents.unt.edu/ei/getdemo.ei?id=3&s=_3000VYEX3id=3&s=_3000VYEX3
Lone Star Chemistry Solutions
EngagementEngagement
Mean Green Foam Mean Green Foam MachineMachine
Classically…..Elephant’s Classically…..Elephant’s ToothpasteToothpaste
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EngagementEngagement
Hot or Cold?Hot or Cold?
Baking Soda and Vinegar Baking Soda and Vinegar BalloonsBalloons
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ExplorationExploration
Acid or Base?Acid or Base?
Red Cabbage Indicator PaperRed Cabbage Indicator Paper
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ExplanationExplanation
Conceptual Conceptual UnderstandingUnderstandingAnthrcyanine DyesAnthrcyanine Dyes
Paper Preparation and Use
ColorsEmpirically Use of pH Probes
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ElaborationElaboration
Endothermic or Endothermic or Exothermic?Exothermic?
Materials:Paper matrix of Common Household Acids and Bases
Vernier Temperature Probes
Hypothesis
Experimentally verify
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EvaluationEvaluation
What Percentage What Percentage were Correct?were Correct?
Neutralization reactions forming gases Neutralization reactions forming gases
Neutralization reactions tha remain in Neutralization reactions tha remain in solutionsolution
Lone Star Chemistry Solutions
A Dozen or More A Dozen or More CalculationsCalculations
Additional ConceptsAdditional ConceptsHess’ Law, Specific Heat, Thermochemical Hess’ Law, Specific Heat, Thermochemical
Equations Equations