Chapter7: Statistical Data Treatment And Evaluation
Section: Chapter Questions
Problem 7.9QAP
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Question
I need help calculating the following values please!! (for the unrounded values please include 6 sig figs)
Transcribed Image Text:EQUILIBRIUM CONSTANT
K
Sample
Unrounded
Rounded
A
В
3
4
4-
4,
3.
![PART 2. DETERMINATION OF THE CONCENTRATION OF A STRONG ACID SOLUTION
EXPERIMENTAL DATA
The total volume must be close to 15.00 mL. Record the equilibrium concentrations and absorbances displayed on the
computer screen once the samples have been scanned.
Fe(SCN)2+]equ
BURETTE
0.00150 M
0.00150 M
DEIONIZED
SAMPLE
ABSORBANCE
Fes+, (mL)
SCN¯,(mL)
H20, (mL)
(M)
READINGS
Initial
12.38
15.53
18.26
A
8.860 × 10-5
0.398126
Final
19.53
19.31
22.33
Initial
10.73
14.22
18.12
B
1.175 x 10-4
0.521179
Final
17.60
18.19
22.28
Initial
11.83
16.64
12.78
1.655 x 104
0.726137
Final
18.91
20.55
16.79](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faf788d3b-bd6b-4d7a-9ce2-c406b5ef9c93%2Fb4a2eac2-eaa2-4560-a7b0-40bbfe545406%2Fdg3r8a_processed.png&w=3840&q=75)
Transcribed Image Text:PART 2. DETERMINATION OF THE CONCENTRATION OF A STRONG ACID SOLUTION
EXPERIMENTAL DATA
The total volume must be close to 15.00 mL. Record the equilibrium concentrations and absorbances displayed on the
computer screen once the samples have been scanned.
Fe(SCN)2+]equ
BURETTE
0.00150 M
0.00150 M
DEIONIZED
SAMPLE
ABSORBANCE
Fes+, (mL)
SCN¯,(mL)
H20, (mL)
(M)
READINGS
Initial
12.38
15.53
18.26
A
8.860 × 10-5
0.398126
Final
19.53
19.31
22.33
Initial
10.73
14.22
18.12
B
1.175 x 10-4
0.521179
Final
17.60
18.19
22.28
Initial
11.83
16.64
12.78
1.655 x 104
0.726137
Final
18.91
20.55
16.79
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