Are Your Students Ready for Lab?

Presented by: Tony BaldwinModerated by: Janet del Mundo

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November 5th, 2015

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Questions and Comments

Introductions

Tony BaldwinDirector and Co-founderLearning Science

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100s interactive resourcesCovers all common techniques,

calculations, safety & instruments

General and organic chemistry

New in Version IIHTML5 practice activitiesAdditional content including:

Boiling Point Analysis by DistillationGas ChromatographyDecantation Vacuum distillationSublimationPolarimetry

Challenges:Getting students engagedGetting students preparedIncreasing confidence in the labStudents ran out of time

Students didn’t do the work

First 15 minutes used to catch up

Labs became recipe following exercise

DemonstrationInteractive practice

Quizzes

Demonstration activities HTML5

Provide key information and conceptsVideos and stepped calculationsGives students control

Practice activities HTML5

Highly interactiveInvolve decision making and problem

solvingHands onSetting up equipment, performing

techniques and working through calculations

QuizzesTest information from demonstration and

practice activitiesPre-populatedCreate custom quizzes

Safety in the LaboratoryKeeping a Laboratory NotebookWriting a Laboratory ReportWeighing with a Top Pan BalanceWeighing with an Analytical BalanceUsing Graduated CylindersUsing Volumetric PipetsUsing Graduated PipetsPreparing Standard SolutionsPreparing Standard Solutions by DilutionHeating with a Bunsen BurnerUsing an Electric Hot Plate and Magnetic StirrerCooling with an Ice BathHeating with a Water BathMeasuring pH with a pH MeterUsing pH IndicatorspH and Buffer CalculationsTitration ExperimentsTitration CalculationsCalorimetry for Measuring Enthalpy Change of NeutralizationCalorimetry for Measuring Enthalpy Change of CombustionEnthalpy Change Calculations

Redox ReactionsElectrochemical Cells

Performing a Gravity FiltrationPerforming a Vacuum Filtration (Büchner)Using a CentrifugePerforming a RecrystallizationPerforming a Melting Point AnalysisUsing a UV-Vis SpectrophotometerQualitative Tests for Anions and CationsDensity CalculationsBalancing EquationsMole Calculations Involving Molar MassMole Calculations Involving SolidsMole Calculations Involving SolutionsMole Calculations to Determine YieldIdeal Gas CalculationsEquilibrium Constant CalculationsEquilibria - Le Chatelier’s PrincipleRate of Reaction CalculationsError Analysis: Combining ErrorsError Analysis: Percentage ErrorError Analysis: Standard DeviationSignificant FiguresHeating under RefluxPerforming Distillation Experiments

Using a Rotary EvaporatorUsing a Separatory FunnelChoosing and Using Drying AgentsThin Layer Chromatography (TLC)

Column ChromatographyInfrared (IR) SpectroscopyProton Nuclear Magnetic Resonance Spectroscopy (1H NMR)Carbon-13 Nuclear Magnetic Resonance Spectroscopy (13C NMR)Qualitative Tests for Organic Functional GroupsUsing Microscale EquipmentUsing an Automated Pipet (Microscale)Heating under Reflux (Microscale)Performing Distillation Experiments (Microscale)Performing a Pipet Filtration (Microscale)Performing a Vacuum Filtration (Hirsch) (Microscale)Performing a Recrystallization (Microscale)Performing a Liquid Extraction (Microscale)Mole Calculations Involving LiquidsEquilibrium CalculationsError Analysis

Preparing Standard Solutions by Dilution

Weighing with a Top Pan Balance Performing a Vacuum Filtration (Büchner)

Mole Calculations to Determine Yield

Weighing with a Top Pan Balance Performing a Vacuum Filtration (Büchner)

Preparing Standard Solutions by Dilution

Mole Calculations to Determine Yield

Performing a Vacuum Filtration (Büchner)

Preparing Standard Solutions by Dilution

Weighing with a Top Pan Balance

Mole Calculations to Determine Yield

Automatically gradedSaves staff timeIncentive for students to

do the pre-lab work

Feedback in time for the labs

Consistent for all24 hour access

For students:

ExampleChemical Principles in the LaboratoryEmil J. Slowinski, Wayne C. Wolsey

Experiment 28:Determination of the hardness of water

ExampleWeighing by difference

Example

Volumetric flask

Example

Titration

Techniques:Weighing Measuring cylindersVolumetric flaskTitration set upTitrationVolumetric pipetReading a buret

Calculations:MolarityMoles

Questions?

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