B. The copper concentration in a contaminated salt sample wasspectrometry. In the analysis, a 10.00-g sample containing an arvolumetric flask and diluted to volume.A series of 10.0 mL of the diluted sample solution was pipetted into each of five 50.0-mL volumetricflasks. Various volumes of a standard containing 12.2 ppm Cu were added to the flasks, and thesolutions were then diluted to volume. The corresponding absorbances of each of the solutions aregiven below:Unknown, mL10.010.010.010.010.0Standard, mL0.010.020.030.0ined by flame atomic absorptionis transferred to a 250-ml40.0Absorbance0.2010.2920.3780.4670.554Calculate the copper concentration (a) in the diluted sample solution expressed in ppm Cu, and (b) inthe salt sample as percent copper (%Cu).

Here standard addition technique is used to standardize the copper sample in which to a fixed volume…

Answered: Calculate the copper concentration (a)…

Calculate the copper concentration (a) in the diluted sample solution expressed in ppm Cu, and (b) in he salt sample as percent copper (%Cu).

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 80AP

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