M Chemical Car Competition Fall 2009 Jeremy D. Kenny D Jose B. Liam M.

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MM= 342 amu Calculate the number of moles..

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Presentation transcript:

M Chemical Car Competition Fall 2009 Jeremy D. Kenny D Jose B. Liam M

Propelling Reaction 4 Our Car HCl(aq)+NaHCO 3 (s) NaCl(aq)+H 2 O(l)+CO 2 (g) Theoretical Predictions: React 12ml Hydrochloric Acid with 12.2g Baking Soda.012LHCl(12.1molHCl/1L)(1mol NaHCO 3 /1mol HCl)(84g NaHCO 3 /1mol NaHCO 3 )= 12.2g NaHCO 3 = mol NaHCO 3 How much pressure with this create at 20 o C? P=((0.1452mol CO 2 )( cm 3 *atm/mol*k)(293K))/(0.7L)= 5 atm

Our Whip And Its Evolution To Greatness Major Changes: Moved to 2 wheels in the front. Redesigned to have bottle pushing directly on the axle. And added 2 red stringers for stability. Results: Dramatic increase in distance. Actually able to compete. Lighter, more stable.

Testing Results

Performance Evaluation Overall, when the day was done and the cookies and juice were drank our car was still the most consistent for give my group very inaccurate results. This was our strength as well as a weakness when it came to our car. We did make it to the Finals with a dazzling performance in the Semis putting up a distance of -15in, probably still the track record. We believe that our design could have been made more propel bottle friendly making it more likely to roll easily and consistently.