The nickel level in a soil sample was determined using AAS. A 3.0 g sample was dissolved in acid and then diluted to a total volume of 100.0 mL. The absorbance of this solution determined at a wavelength of 232 nm was found to be 0.3. Several standard solutions were tested under the same conditions and a calibration curve shown below was obtained. Calculate the mass of nickel in mg.

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
Chapter20: Molecular Spectroscopy And Photochemistry
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The nickel level in a soil sample was determined using AAS. A 3.0 g sample was
dissolved in acid and then diluted to a total volume of 100.0 mL. The absorbance of this
solution determined at a wavelength of 232 nm was found to be 0.3. Several standard
wwm
solutions were tested under the same conditions and a calibration curve shown below
was obtained. Calculate the mass of nickel in mg.
0.9
y = 0.0699x +0.015.
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
*****...
8
10
12
14
[Ni], ppm
Absorbance
Transcribed Image Text:The nickel level in a soil sample was determined using AAS. A 3.0 g sample was dissolved in acid and then diluted to a total volume of 100.0 mL. The absorbance of this solution determined at a wavelength of 232 nm was found to be 0.3. Several standard wwm solutions were tested under the same conditions and a calibration curve shown below was obtained. Calculate the mass of nickel in mg. 0.9 y = 0.0699x +0.015. 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 *****... 8 10 12 14 [Ni], ppm Absorbance
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