Web-Based Molecular Level Inquiry Lab Activities

1. Web-Based Molecular Level Inquiry Laboratory ActivitiesMichael AbrahamJohn Gelder University of Oklahoma Oklahoma State University

2. Project Goals This Project addresses five perceived problems in instruction at the introductory level in Chemistry: • A need to help students visualize PNM phenomonon, • a need for curriculum materials that will support an inquiry oriented instructional strategy, • the difficulty students have linking macroscopic, microscopic and symbolic levels of understanding, • a need for computer-based instructional materials that are simple, dynamic and interactive, • a need to identify and address student's misconceptions.

3. Eight Molecular Level Experiment (MoLE) Simulations MoLEs in development:Gas Laws, Gas Phase Equilibrium, Kinetics, MoLEs to be developed:Atomic Structure and Periodicity, Acid-Base Chemistry, Calorimetry, Electrochemistry and Molecular and Solid State Structure. Each MoLE Simulation will be accompanied by guided and open-inquiry laboratory activities.

4. Ways of Knowing Chemistry Sensory Symbolic Particulate Johnston via Gabel

5. Ways of Knowing Chemistry Sensory Laboratory Demonstrations Simulations E Symbolic Symbolic Particulate D C B Models Problems A Drawings Data Analysis 1 2 3 4 5 6 Animation q = mC∆ t H O ( s ) H O ( l ) 2 2

6. Ways of Knowing Chemistry Sensory Laboratory Demonstrations Simulations E Symbolic Symbolic Particulate D C B Models Problems A Drawings Data Analysis 1 2 3 4 5 6 Animation q = mC∆ t H O ( s ) H O ( l ) 2 2

7. Ways of Knowing Chemistry Sensory Laboratory Pavelich & Abraham Demonstrations R Fuller - TURK Simulations Juxtaposing MoLE Simulations CBL - Interfaced Juxtaposing Real Time Graphing Conceptual Lab Questions MoLE Simulations MoLE Simulations E Symbolic Symbolic Particulate D Juxtaposing C B Models Problems A Drawings Data Analysis 1 2 3 4 5 6 Animation Kozma & Russell q = mC∆ t H O ( s ) H O ( l ) 2 2

8. Ways of Knowing Chemistry Sensory Laboratory Demonstrations Simulations MoLE Simulations Juxtaposing CBL - Interfaced Juxtaposing Real Time Graphing Conceptual Lab Questions MoLE Simulations MoLE Simulations E Symbolic Symbolic Particulate D Juxtaposing C B Models Problems A Drawings Data Analysis 1 2 3 4 5 6 Animation q = mC∆ t H O ( s ) H O ( l ) 2 2

9. G a s P res s u r e a nd V ol u m e Re lati o n s hi ps E x p . E - 1A Na m e________________________________ L ab S ec ti on______________________ L ab P a rt ne r ___________________________ P rob le m St a t e m en t: How a r e th e p r es s u r e and vo l u m e o f a ga s s a m p l e re l a te d? I . Da t a Co ll ec ti on : P r e s s u r e M e a s u r i n g D e v i c e T u b i n g S y r i n g e S t o p c o c k F ig u r e A A . Ob t a i n a p r e s su r e m e a su ri ng dev i c e a s i nd i c a t ed by you r la b i ns tr uc t o r . Ob t a i n a 60 mL s yr i nge , fill it w i t h a ir , and conn e c t t he sy ri nge t o t he g a s m easu ri ng d e vi c e a s i nd i ca t ed i n fi gur e A . T es t your appa r a t us f or gas l eak s . I f you can ’t e l imi na t e a ll l e a ks , s e e you r la b i ns tr uc t o r . B . I f nece s s a ry , c al ib r a t e you r ga s m ea s u r ing dev i ce a s i nd i ca t ed by you r la b i ns tr uc t o r . F ill your sy ri nge t o t he la rge st vo l u m e m ark on t he sy ri nge and r econn e c t it t o t he gas m easu ri ng dev i ce. Wha t i s th e p r es s u r e o f t h e tr apped ai r i n t he sy ri nge? Exp l a i n . Linking Activities- MoLE Simulations Pavelich & Abraham

10. G a s P res s u r e a nd V ol u m e Re lati o n s hi ps E x p . Co mp u te r S im u lat i on G a s P res s u r e a nd V ol u m e Re lati o n s hi ps Na m e________________________________ L ab E x p . E - 1A S ec ti on___________________________ L ab P a rt ne r ___________________________ Na m e________________________________ L ab S ec ti on______________________ P rob le m St a t e m en t: How a r e th e p r es s u r e and vo l u m e o f a ga s s a m p l e re l a te d? L ab P a rt ne r ___________________________ I . Da t a Co ll ec ti on : P rob le m St a t e m en t: How a r e th e p r es s u r e and vo l u m e o f a ga s s a m p l e re l a te d? A . Open t he G a s Law Sim ul at ion p r ogra m and obse r ve and de s c ri be, i n t he spa c e I . Da t a Co ll ec ti on : be l ow , t he ac ti v it y i n t he G a s L aw w i ndow. Con si der us i ng t he s o m e o r a ll o f t he P r e s s u r e f o l lo w ing t e rm s in you r de s c r ip ti on : par ti c le s, a t o m s , m o l e c ul e s , co lli s i on s , ve l oc it y, ene r gy M , e f a or s c u e. r i n g D e v i c e T u b i n g S y r i n g e S t o p c o c k B . One of ob j ec ts i n t h e w i ndow i s co l ored d i f f e r en tl y t h a n t he o t her s . T r ac e it s F ig u r e A pa t h f r o m one s i d e o f t he sc r een t o t he o t he r . i n th e s pace be l ow. Exp l a i n any change s i n ve l oc it y or d i re ct ion t ha t you obs e rve . A . Ob t a i n a p r e s su r e m e a su ri ng dev i c e a s i nd i c a t ed by you r la b i ns tr uc t o r . Ob t a i n a 60 mL s yr i nge , fill it w i t h a ir , and conn e c t t he sy ri nge t o t he g a s m easu ri ng d e vi c e a s i nd i ca t ed i n fi gur e A . T es t your appa r a t us f or gas l eak s . I f you can ’t e l imi na t e a ll l e a ks , s e e you r la b i ns tr uc t o r . B . I f nece s s a ry , c al ib r a t e you r ga s m ea s u r ing dev i ce a s i nd i ca t ed by you r la b i ns tr uc t o r . F ill your sy ri nge t o t he la rge st vo l u m e m ark on t he sy ri nge and r econn e c t it t o t he gas m easu ri ng dev i ce. Wha t i s th e p r es s u r e o f t h e tr apped ai r i n t he sy ri nge? Exp l a i n . Linking Activities- MoLE Simulations

11. Contact Information • Michael R Abraham • Dept of Chemistry & Biochemistry • University of Oklahoma • Norman, OK 73019 • mrabraham@ou.edu • John I Gelder • Dept of Chemistry • Oklahoma State University • Stillwater, OK 74075 • Jgelder@okstate.edu • http://intro.chem.okstate.edu/2001ACS/Talk.html