Time (min) Volume (mL) 1 0.20 2 0.32 3 0.50 4 0.70 5 0.85 6 1.08 7 1.20 8 1.27 9
ID: 1078792 • Letter: T
Question
Time (min)
Volume (mL)
1
0.20
2
0.32
3
0.50
4
0.70
5
0.85
6
1.08
7
1.20
8
1.27
9
1.50
10
1.68
11
1.86
12
2.12
13
2.20
14
2.35
15
2.55
16
2.70
17
2.90
18
3.00
19
3.13
20
3.40
21
3.56
22
3.70
23
3.87
24
4.02
25
4.20
26
4.36
27
4.58
28
4.70
29
4.85
30
5.10
31
5.20
32
5.43
33
5.60
34
5.70
35
5.85
36
6.10
37
6.20
38
6.40
39
6.55
40
6.74
41
6.90
42
7.10
43
7.33
44
7.40
45
7.56
46
7.80
47
7.97
48
8.10
49
8.24
50
8.40
51
8.67
52
8.80
53
9.04
54
9.10
55
9.27
56
9.50
57
9.72
58
9.80
59
10.00
60
10.10
61
10.36
62
10.50
63
10.60
64
10.85
65
11.00
66
11.10
67
11.30
68
11.46
69
11.70
70
11.80
71
12.00
72
12.20
73
12.36
74
12.50
75
12.72
76
12.88
77
13.00
78
13.20
79
13.34
80
13.50
81
13.69
82
13.80
83
14.00
84
14.20
85
14.40
86
14.55
87
14.70
88
14.90
89
15.04
90
15.20
91
15.36
92
15.50
93
15.70
94
15.90
95
16.00
96
16.17
97
16.40
98
16.60
99
16.78
100
16.90
ANSWER #3 excel data are values above
Time (min)
Volume (mL)
1
0.20
2
0.32
3
0.50
4
0.70
5
0.85
6
1.08
7
1.20
8
1.27
9
1.50
10
1.68
11
1.86
12
2.12
13
2.20
14
2.35
15
2.55
16
2.70
17
2.90
18
3.00
19
3.13
20
3.40
21
3.56
22
3.70
23
3.87
24
4.02
25
4.20
26
4.36
27
4.58
28
4.70
29
4.85
30
5.10
31
5.20
32
5.43
33
5.60
34
5.70
35
5.85
36
6.10
37
6.20
38
6.40
39
6.55
40
6.74
41
6.90
42
7.10
43
7.33
44
7.40
45
7.56
46
7.80
47
7.97
48
8.10
49
8.24
50
8.40
51
8.67
52
8.80
53
9.04
54
9.10
55
9.27
56
9.50
57
9.72
58
9.80
59
10.00
60
10.10
61
10.36
62
10.50
63
10.60
64
10.85
65
11.00
66
11.10
67
11.30
68
11.46
69
11.70
70
11.80
71
12.00
72
12.20
73
12.36
74
12.50
75
12.72
76
12.88
77
13.00
78
13.20
79
13.34
80
13.50
81
13.69
82
13.80
83
14.00
84
14.20
85
14.40
86
14.55
87
14.70
88
14.90
89
15.04
90
15.20
91
15.36
92
15.50
93
15.70
94
15.90
95
16.00
96
16.17
97
16.40
98
16.60
99
16.78
100
16.90
A student performed an experiment where she collected a gas sample (mL) over a 100 minute time period. The reaction that produced the gas product was the following: an aqueous solution of sodium carbonate was mixed with an aqueous solution of hydrochloric acid 1.) Write a balanced chemical equation for this reaction: 2.) If the student first diluted 2.500 mL of 4.055 M sodium carbonate to 75.00 mL, what is the concentration of the diluted sodium carbonate solution? You must show your work to receive any credit for your answer. 3.) The diluted sodium carbonate solution was then mixed with 75.00 mL of 2.000 M HCI (aq) and the volume of carbon dioxide gas produced was recorded over the time period at 25.0°C and 1.00 atm pressure. This data is provided in an excel spreadsheet as a separate document in Coursesite. A.) Calculate the moles of CO2 gas produced over the 100 minute period using the excel program formula feature. Use the formula to fill down column C in the document and label it Moles CO2Explanation / Answer
Time (min) Volume (mL) 1 0.20 2 0.32 3 0.50 4 0.70 5 0.85 6 1.08 7 1.20 8 1.27 9
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