Reaction Car ProjectNeal Ellyson, Diana Vasquez, Ryan Zboralski

CBE101December 8,2009

Group Picture

180mL Vin . 5mL AA . 1.05g AA = 9.45g AA . mol AA = 0.1575mol AA . 1mol CO2

100mL AA cm3 AA 60g 1mol AA

= 0.1575mol CO2

Pbottle = (0.1575mol CO2)(0.08205l*atm/mol*K)(293K)/(0.7 l) = 5.41 atm

Reaction Chemistry

.)(3

)(2

)(2

)(3

)](2

.)(3

[ aqCOONaCHgCOlOHsNaHCOlOHaqCOOHCH

.)()()()()( aqateSodiumAcetgideCarbonDioxlWatersBakingSodalVinegar

ateSodiumAcetideCarbonDioxWaterrbonateSodiumBicaWaterAceticAcid ][

Car Design Pictures

Test Results (data)

Trial 1- spillage of baking soda, not all grams went into the bottle.Trial 8- we had a problem with the cap and bottle

TrialVolume of Vinegar (mL)

Volume of water (mL) Baking Soda (g) Distance (ft)

1 180 50 12 152 190 50 13 223 180 50 10 214 180 50 9 185 180 50 6 56 180 50 7 57 180 50 8 198 180 50 8.5 179 180 50 8.5 28

10 180 50 7 20

Stn Dev 3.16 0 2.22 7.21Avg 181 50 8.9 17

1 2 3 4 5 6 7 8 9 100

5

10

15

20

25

30

Baking Soda amount vs. Distance traveled

Baking Soda (g)Distance (ft)

Trial #

Bakin

g s

od

a a

mou

nt

(g),

D

ista

nce (

ft)

Test Results (plot)

1 2 3 4 5 6 7 8 9 10 avg0

5

10

15

20

25

30

Distance

Distance

Trial # & Average

Feet

Test Results (plot 2)

In conclusion, we seemed to run our baking soda and vinegar car very effectively. It took us a while to get the car to move, but once we did, it ran quite well. We had one run that was precisely 25 feet. Next time I think I will use a different reaction. One that I found was to use calcium carbonate and a weak acid to create carbon dioxide gas. The calcium carbonate preferably needs to be in either granular or chunks for decreased surface area. That way it does not react all at once. In hindsight, I think we did very well in our final project.

Conclusion