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Eid Al-Helal Geoffrey Zath Ryan Furukawa Reaction Powered Car

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Reaction Chemistry HCl (l) + NaHCO 3(s) NaCl (aq) + CO 2(g) + H 2 O (l) Solution of HCl was 12.1 M. Added 9.37g NaHCO 3 with 10 mL HCl. 12.1 M *.001 mL=.0121mol HCl Molecular Weight of NaHCO 3 =84g/mol, 9.37g/84g/mol=.112mol NaHCO 3 HCl is in excess This reaction creates.122 mol CO 2 22.4L/mol*.112mol CO 2 =2.5L Volume of bottle after addition of 190mL H 2 O and 10mL HCl=.5L 2.5L of CO 2 (g)/.5L=5atm

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Test Results HCl (mL)NaHCO3 (g)H2O (mL)Distance (ft)atm 157.3322553 3014.6720106 3014.6620156 2510.962584.5 109.37190305 109.35190255 107.5190154 107.48190104 7.51190204 108.8190134.7 108.82190104.7 1110.1258974.5

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Conclusion When testing the car using the Hydrochloric Acid and the Sodium Bicarbonate reaction, it was found that it resulted in many different distances, ranging anywhere from 0 feet to 50 feet each using different combinations of vehicle parts and chemical combinations. From our tests, the results were not very reliable, and the outcome was undesirable. When presented with a low distance, we altered our vehicle in order to lighten the weight, which would then give us different distance results in the next trial. But in our final trial, a chemical combination that would normally result in 20 feet gave us 50 feet. For improvements in the future trials, we should keep time measurements of how long the reaction took place before opening the bottle. It was evident that a fully reacted bottle was not as effective as a partially reacted bottle. Next time, keeping track of the distances yielded in relation to time would give us a better chance at getting closer to the 25 feet.