daniel reid conner smith sarah wong. [hydrochloric acid]+[calcium carbonate(crayola chalk)] ...
Post on 19-Dec-2015
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TRANSCRIPT
[Hydrochloric Acid]+[Calcium Carbonate(Crayola Chalk)][Calcium Chloride]+[Water]+[Carbon Dioxide]
2HCl(aq)+CaCO3(s)CaCl2(aq)+H2O(l)+CO2(g)
Molar Mass CaCO3=100.09 g/mole
Reaction Chemistry
€
0.06145 mol CaCO32 mol HCl
1 mol CaCO3
⎛ ⎝ ⎜
⎞ ⎠ ⎟= 0.1229 mol HCl needed
€
0.1229 mol HCl 1 L HCl12.1 mol HCl( )
1000 mL1 L( ) =10.2 mL HCl (12.1 M)
€
0.06145 mol CaCO31 mol CO2
1 mol CaCO3
⎛ ⎝ ⎜
⎞ ⎠ ⎟= 0.06145 mol CO2
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PBottle = nRTVBottle
=(0.06145 mol CO2)(0.0821 L - atm/mol - K)(293 K)
((0.700 LBottle) - (0.314 LWater ) - (0.01074 LHCl))= 3.94 atm +1 atmInitial P = 4.94 atmBottle
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6.150 g CaCO31 mol CaCO3
100.09 g CaCO3
⎛ ⎝ ⎜
⎞ ⎠ ⎟= 0.06145 mol CaCO3
Calcium CarbonateCaCO3 (g)
Hydrochloric Acid (12.1 M)HCl (mL)
WaterH2O (mL)
Pressure of Bottle(atm)
Distance (ft)
6.006 10.0 290 4.61 10
6.152 12.5 287.5 4.70 20
6.124 15.0 310 4.92 20
7.101 15.0 310 5.55 30
6.473 15.0 310 5.14 27.5
6.507 15.0 310 5.17 26
6.407 15.0 310 5.11 20
Test Day-different surface
6.013 17.5 307.5 4.85 21.08
6.199 17.5 307.5 4.97 26.42
6.011 17.5 307.5 4.85 25.5
Testing Results
Testing Results
5.8 6 6.2 6.4 6.6 6.8 7 7.20
5
10
15
20
25
30
35
Distance VS Mass Calcium Carbonate (Chalk)
Test Track ResultsTest Day Results
Mass Calcuium Carbonate-Chalk (g)
Dis
tan
ce
(ft
)