Below is a set of data collected at 0.95 atm for the formation of CO 2 gas produ
ID: 862301 • Letter: B
Question
Below is a set of data collected
at 0.95 atm
for the formation of CO
2
gas produced when calcium
carbonate is reacted with aqueous HCl:
Time (min)
Volume CO
2
(mL)
1
0.2
0
2
0.3
0
3
0.5
0
4
0.7
0
5
0.9
0
6
1
.00
7
1.2
0
8
1.3
0
9
1.5
0
10
1.7
0
11
1.9
0
12
2
.00
13
2.2
0
14
2.4
0
15
2.5
0
16
2.7
0
17
2.9
0
18
3
.00
19
3.2
0
20
3.4
0
Your assignment is as follows:
1. Create a spreadsheet in Excel (or equivalent) that
contains this data and does the following
calculations
automatically:
a. Converts each gas volume measurement to
moles of CO
2
produced
(Use a
PV = nRT to
solve
). Do this twice: one column for 0
Explanation / Answer
P = 0.95 atm R = 0.08206 L atm/mol.K n = PV/RT m = n*(44.01*1000 mg/mol) In 3 significant figures. Time (min) VCO2 (mL) VCO2 (L) nCO2 nCO2 mCO2 (mg) nCO2 nCO2 (T = 273 K) (T = 298 K) (T = 298 K) (T = 273 K) (T = 298 K) 1 0.2 0.0002 8.48124E-06 7.76973E-06 0.341945736 8.48E-06 7.77E-06 2 0.3 0.0003 1.27219E-05 1.16546E-05 0.512918604 1.27E-05 1.16E-05 3 0.5 0.0005 2.12031E-05 1.94243E-05 0.854864341 2.12E-05 1.94E-05 4 0.7 0.0007 2.96843E-05 2.7194E-05 1.196810077 2.97E-05 2.72E-05 5 0.9 0.0009 3.81656E-05 3.49638E-05 1.538755813 3.82E-05 3.50E-05 6 1 0.001 4.24062E-05 3.88486E-05 1.709728681 4.24E-05 3.88E-05 7 1.2 0.0012 5.08875E-05 4.66184E-05 2.051674417 5.09E-05 4.66E-05 8 1.3 0.0013 5.51281E-05 5.05032E-05 2.222647285 5.51E-05 5.05E-05 9 1.5 0.0015 6.36093E-05 5.8273E-05 2.564593022 6.36E-05 5.83E-05 10 1.7 0.0017 7.20906E-05 6.60427E-05 2.906538758 7.21E-05 6.60E-05 11 1.9 0.0019 8.05718E-05 7.38124E-05 3.248484494 8.06E-05 7.38E-05 12 2 0.002 8.48124E-05 7.76973E-05 3.419457362 8.48E-05 7.77E-05 13 2.2 0.0022 9.32937E-05 8.5467E-05 3.761403098 9.33E-05 8.55E-05 14 2.4 0.0024 0.000101775 9.32367E-05 4.103348835 1.02E-04 9.32E-05 15 2.5 0.0025 0.000106016 9.71216E-05 4.274321703 1.06E-04 9.71E-05 16 2.7 0.0027 0.000114497 0.000104891 4.616267439 1.14E-04 0.000105 17 2.9 0.0029 0.000122978 0.000112661 4.958213175 1.23E-04 0.000113 18 3 0.003 0.000127219 0.000116546 5.129186043 1.27E-04 0.000116 19 3.2 0.0032 0.0001357 0.000124316 5.471131779 1.36E-04 0.000124 20 3.4 0.0034 0.000144181 0.000132085 5.813077516 1.44E-04 0.000132
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