The gold content of a concentrated seawater sample was determined by using atomic-absorption spectrometry with the method of standard additions. The results obtained were as follows.Estimate the concentration of the gold in the concentrated seawater, and determine confidence limits for this concentration. 3) The gold content of a concentrated sea water sample was determined using atomic-absorptionspectrometry with the method of standard additions. The following results were obtained:Gold added(ng-mL ofconcentrated010203040506070sample)0.468 0.528 0.574 0.635Absorbance (r.u.) 0.257 0.314 0.364 0.413Estimate the concentration of the gold in the concentrated sea water, and determine the confidencelimits for this concentration.

Solution - According to the question - Given - Conc. of Analyte added : [S]f = [S]i * ( Vs /V) We…

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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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The gold content of a concentrated seawater sample was determined by using atomic-absorption spectrometry with the method of standard additions. The results obtained were as follows.

Estimate the concentration of the gold in the concentrated seawater, and determine confidence limits for this concentration.

3) The gold content of a concentrated sea water sample was determined using atomic-absorption
spectrometry with the method of standard additions. The following results were obtained:
Gold added
(ng-mL of
concentrated
0
10
20
30
40
50
60
70
sample)
0.468 0.528 0.574 0.635
Absorbance (r.u.) 0.257 0.314 0.364 0.413
Estimate the concentration of the gold in the concentrated sea water, and determine the confidence
limits for this concentration.

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