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. BURETTE 0.00150 M 0.00150 M [Fe(SCN)**]equ DEIONIZED SAMPLE ABSORBANCE Fet, (mL) SCN ,(mL) H,O, (mL) (M) READINGS Initial 12.38 15.53 18.26 A 8.860 x 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

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. BURETTE 0.00150 M 0.00150 M [Fe(SCN)**]equ DEIONIZED SAMPLE ABSORBANCE Fet, (mL) SCN ,(mL) H,O, (mL) (M) READINGS Initial 12.38 15.53 18.26 A 8.860 x 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

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.

Question

I help calculating the following values please.

EQUILIBRIUM CONSTANT
K
Sample
Unrounded
Rounded
A
3
4
3
4
3
4

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.
DEIONIZED
[Fe(SCN)**]equ
BURETTE
0.00150 M
0.00150 M
SAMPLE
ABSORBANCE
Fe+, (mL)
SCN ,(mL)
H2O, (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
C
1.655 x 10-4
0.726137
Final
18.91
20.55
16.79

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