1. Perform the following calculations for Mg(s) a) Calculate the vapor pressure of water at the temperature of your experiment (see appendix 1) b) Calculate the pressure (in kPa) of the water column formed by the difference in the solution levels inside and outside the gas burette (i.e. convert from mm H2O to kPa) c) Calculate the pressure (bar) exerted by the hydrogen gas alone d) Calculate the number of moles of H2(g) Produced in the reaction of Mg(s) with HCl(aq), Mg(s) is the limiting reactant  e) Calculate the value of the ideal gas constant, R (L bar mol-1 K-1)

Fundamentals Of Analytical Chemistry
9th Edition
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Author:Skoog
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Chapter7: Statistical Data Treatment And Evaluation
Section: Chapter Questions
Problem 7.24QAP
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1. Perform the following calculations for Mg(s)

a) Calculate the vapor pressure of water at the temperature of your experiment (see appendix 1)

b) Calculate the pressure (in kPa) of the water column formed by the difference in the solution levels inside and outside the gas burette (i.e. convert from mm H2O to kPa)

c) Calculate the pressure (bar) exerted by the hydrogen gas alone

d) Calculate the number of moles of H2(g) Produced in the reaction of Mg(s) with HCl(aq), Mg(s) is the limiting reactant 

e) Calculate the value of the ideal gas constant, R (L bar mol-1 K-1)

Appendix and numbers needed are added

RAW DATA
LABORATORY REPORT
Mass of Mg(s)
Final burette reading for Mg(s) procedure
Difference in solution levels for Mg(s) procedure
Atmospheric pressure, Patm (provided by lab instructor)
Temperature
of trapped gas (provided by lab instructor)
0.0769
77.42
138
102.5
18.5
mL
mm H₂O
kPa
°C
Transcribed Image Text:RAW DATA LABORATORY REPORT Mass of Mg(s) Final burette reading for Mg(s) procedure Difference in solution levels for Mg(s) procedure Atmospheric pressure, Patm (provided by lab instructor) Temperature of trapped gas (provided by lab instructor) 0.0769 77.42 138 102.5 18.5 mL mm H₂O kPa °C
APPENDIX 1 VAPOUR PRESSURE OF WATER
Temp
°℃
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
Table 3 - The vapor pressure of water from 0 to 105 °C at 1 degree intervals
Temp
°C
34.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
Pressure
mmHg
4.6
4.9
5.3
5.7
6.1
6.5
7.0
7.5
8.0
8.6
9.2
9.8
10.5
11.2
12.0
12.8
13.6
kPa
0.613
0.653
0.706
0.760
0.813
0.866
0.933
1.00
1.07
1.15
1.23
1.31
1.40
1.49
1.60
1.71
1.81
Temp
°C
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
26.0
27.0
28.0
29.0
30.0
31.0
32.0
33.0
Pressure
mmHg
14.5
15.5
16.5
17.5
18.7
19.8
21.1
22.4
23.8
25.2
26.7
28.3
30.0
31.8
33.7
35.7
37.7
kPa
1.93
2.07
2.20
2.33
2.49
2.64
2.81
2.99
3.17
3.36
3.56
3.77
4.00
4.24
4.49
4.76
5.03
70.0
75.0
80.0
85.0
90.0
95.0
100.0
105.0
Pressure
mmHg
39.9
42.2
55.3
71.9
92.5
118
149
188
233
289
355
434
526
634
760
906
kPa
5.32
5.62
7.37
9.58
12.3
15.7
19.9
25.1
31.1
38.5
47.3
57.8
70.1
84.5
101.3
120.8
FARLY INTERPOLATE USING A TABLE
order to estimate a value that lies between two data points in a table the process of linear interpolation c
Transcribed Image Text:APPENDIX 1 VAPOUR PRESSURE OF WATER Temp °℃ 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 Table 3 - The vapor pressure of water from 0 to 105 °C at 1 degree intervals Temp °C 34.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 Pressure mmHg 4.6 4.9 5.3 5.7 6.1 6.5 7.0 7.5 8.0 8.6 9.2 9.8 10.5 11.2 12.0 12.8 13.6 kPa 0.613 0.653 0.706 0.760 0.813 0.866 0.933 1.00 1.07 1.15 1.23 1.31 1.40 1.49 1.60 1.71 1.81 Temp °C 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0 26.0 27.0 28.0 29.0 30.0 31.0 32.0 33.0 Pressure mmHg 14.5 15.5 16.5 17.5 18.7 19.8 21.1 22.4 23.8 25.2 26.7 28.3 30.0 31.8 33.7 35.7 37.7 kPa 1.93 2.07 2.20 2.33 2.49 2.64 2.81 2.99 3.17 3.36 3.56 3.77 4.00 4.24 4.49 4.76 5.03 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 Pressure mmHg 39.9 42.2 55.3 71.9 92.5 118 149 188 233 289 355 434 526 634 760 906 kPa 5.32 5.62 7.37 9.58 12.3 15.7 19.9 25.1 31.1 38.5 47.3 57.8 70.1 84.5 101.3 120.8 FARLY INTERPOLATE USING A TABLE order to estimate a value that lies between two data points in a table the process of linear interpolation c
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