Report the absorbance reading obtained for your TZ unknown at 430 nm. Using the calculated effective molar absorptivity of TZ from the Beer's Law plot you already generated, calculate the concentration of your TZ unknown. TZ Unknown Absorbance at 430 nm Concentration of TZ Unknown (M) 0.749 Unrounded 24.9666 Rounded 3

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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  Unrounded Rounded
ε∗,L/μmolε∗,L/μmol 0.0259825 0.0260

 

heres data:

TZ # Concentration Absorbance at 430 nmnm
1 33.6480 0.931
2 25.2360 0.757
3 16.8420 0.210
4 8.41200 0.137
5 4.20600 0.122
Report the absorbance reading obtained for your TZ unknown at 430 nm. Using the calculated effective molar absorptivity of TZ from
the Beer's Law plot you already generated, calculate the concentration of your TZ unknown.
TZ Unknown Absorbance at 430 nm
Concentration of TZ Unknown (M)
III. 7.
We will now deter
determined by co
the dispensary sta
Percent Error of
24.9666
X Incorrect
0.749
Unrounded
24.9666 A
SUBMIT
SOLVE
To calculate the concentration of your unknown,
remember to use the linear trendline obtained from the
Beer's Law plot. The absorbance of the unknown is
your y-value, and you are solving for your
concentration (or the x-value).
Try again.
Rounded
3
unknown concentration. Your percent error is
oncentration of that sample (which is known by
concentration
x 100
Transcribed Image Text:Report the absorbance reading obtained for your TZ unknown at 430 nm. Using the calculated effective molar absorptivity of TZ from the Beer's Law plot you already generated, calculate the concentration of your TZ unknown. TZ Unknown Absorbance at 430 nm Concentration of TZ Unknown (M) III. 7. We will now deter determined by co the dispensary sta Percent Error of 24.9666 X Incorrect 0.749 Unrounded 24.9666 A SUBMIT SOLVE To calculate the concentration of your unknown, remember to use the linear trendline obtained from the Beer's Law plot. The absorbance of the unknown is your y-value, and you are solving for your concentration (or the x-value). Try again. Rounded 3 unknown concentration. Your percent error is oncentration of that sample (which is known by concentration x 100
molar absorptivity (represented by the slope of the linear trendline), which has units of μmol in this case.
Absorbance
0.8
0.6
0.4
0.2
1
I
LO
5
Beer's Law Plot of TZ at 430 nm
10
15
430 nm: y = 0.0259825 x
20
Concentration (μM)
25
30
35
П
+
Transcribed Image Text:molar absorptivity (represented by the slope of the linear trendline), which has units of μmol in this case. Absorbance 0.8 0.6 0.4 0.2 1 I LO 5 Beer's Law Plot of TZ at 430 nm 10 15 430 nm: y = 0.0259825 x 20 Concentration (μM) 25 30 35 П +
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