Calibration data for a bromide ion-selective electrode (ISE) was collected and recorded [Br¯] (M) Potential (mV) in the table. The potential of the ISE was measured against a saturated calomel 0.300 -21.8 electrode (SCE). All solutions were buffered at a pH of 7.56. A linear calibration curve can be constructed from this data as a plot of potential (in mV) vs. log [Br¯]. Determine 0.0300 36.4 the slope and y-intercept of such a plot of the calibration data given. 0.00300 96.0 0.000300 154.8 0.0000300 224.9 slope = y-intercept = Two unknown solutions were tested for [Br¯] using the same bromide ISE. The potential reading for unknown 1 was –7.6 mV, and the potential reading for unknown 2 was 198.9 mV. Using the calibration curve you constructed, determine the concentration of Br¯ in each unknown solution. unknown 1 [Br¯] = M unknown 2 [Br¯] = M } TOOLS x10
Calibration data for a bromide ion-selective electrode (ISE) was collected and recorded [Br¯] (M) Potential (mV) in the table. The potential of the ISE was measured against a saturated calomel 0.300 -21.8 electrode (SCE). All solutions were buffered at a pH of 7.56. A linear calibration curve can be constructed from this data as a plot of potential (in mV) vs. log [Br¯]. Determine 0.0300 36.4 the slope and y-intercept of such a plot of the calibration data given. 0.00300 96.0 0.000300 154.8 0.0000300 224.9 slope = y-intercept = Two unknown solutions were tested for [Br¯] using the same bromide ISE. The potential reading for unknown 1 was –7.6 mV, and the potential reading for unknown 2 was 198.9 mV. Using the calibration curve you constructed, determine the concentration of Br¯ in each unknown solution. unknown 1 [Br¯] = M unknown 2 [Br¯] = M } TOOLS x10
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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5.
![Calibration data for a bromide ion-selective electrode (ISE) was collected and recorded
[Br¯] (M)
Potential (mV)
in the table. The potential of the ISE was measured against a saturated calomel
0.300
-21.8
electrode (SCE). All solutions were buffered at a pH of 7.56. A linear calibration curve
0.0300
36.4
can be constructed from this data as a plot of potential (in mV) vs. log [Br]. Determine
the slope and y-intercept of such a plot of the calibration data given.
0.00300
96.0
0.000300
154.8
0.0000300
224.9
slope =
у-intercept%3D
Two unknown solutions were tested for [Br] using the same bromide ISE. The potential reading for unknown 1 was -7.6 mV,
and the potential reading for unknown 2 was 198.9 mV. Using the calibration curve you constructed, determine the concentration
of Br in each unknown solution.
unknown 1 [Br¯] =
M
unknown 2 [Br¯] =
M
* TOOLS
х10](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe5a4a68c-2d76-4051-a38a-f426f05feab1%2Feb6cd92c-75ad-4b28-b544-19a98fc7a90d%2Ffag0qqi_processed.png&w=3840&q=75)
Transcribed Image Text:Calibration data for a bromide ion-selective electrode (ISE) was collected and recorded
[Br¯] (M)
Potential (mV)
in the table. The potential of the ISE was measured against a saturated calomel
0.300
-21.8
electrode (SCE). All solutions were buffered at a pH of 7.56. A linear calibration curve
0.0300
36.4
can be constructed from this data as a plot of potential (in mV) vs. log [Br]. Determine
the slope and y-intercept of such a plot of the calibration data given.
0.00300
96.0
0.000300
154.8
0.0000300
224.9
slope =
у-intercept%3D
Two unknown solutions were tested for [Br] using the same bromide ISE. The potential reading for unknown 1 was -7.6 mV,
and the potential reading for unknown 2 was 198.9 mV. Using the calibration curve you constructed, determine the concentration
of Br in each unknown solution.
unknown 1 [Br¯] =
M
unknown 2 [Br¯] =
M
* TOOLS
х10
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