Gold can be determined in solutions containing high concentrations of diverse ions by ICP-AES. Aliquots of50.0 mL of the sample solution were transferred to each of four 100.0 mL volumetric flasks. A solution wasprepared containing 10.0 mg/L Au in 20% H2SO4 and quantities of this solution were added to the samplesolutions to give 0, 2.5, 5, and 10 mg/L added Au in each of the flasks. The solutions were made up to a totalvolume of 100.0 mL, mixed, and analysed by ICP-AES. The resulting data are presented in the following table.Added Au, mg/LEmission Intensity Count12,56819,32426,62240,0210.02.55.010.0Calculate the concentration of gold in the original sample.

The values of added gold and emission intensity count can be given. To find the concentration of…

Answered: 20% H2SO4 L added Au1 i

Science

Chemistry

20% H2SO4 L added Au1 i

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter10: Atomic Emission Spectrometry

Section: Chapter Questions

Problem 10.11QAP

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