Eid Al-Helal Geoffrey Zath Ryan Furukawa Reaction Powered
Car
Slide 2
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
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.