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Lithium in a sample is determined by flame emission spectrometry, using a standard additions calibration. 100pL of sample diluted to ImL gives an emission signal of 6.7 units. A similar solution to which 10 uL of a 0.010 M solution of LiNO, added gives a signal of 14.6 units. Assuming linearity between the emission signal and the lithium concentration, what is the concentration of lithium in the sample in ppm?

Lithium in a sample is determined by flame emission spectrometry, using a standard additions calibration. 100pL of sample diluted to ImL gives an emission signal of 6.7 units. A similar solution to which 10 uL of a 0.010 M solution of LiNO, added gives a signal of 14.6 units. Assuming linearity between the emission signal and the lithium concentration, what is the concentration of lithium in the sample in ppm?

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Lithium in a sample is determined by flame emission spectrometry, using a standard additions calibration. 100µL of sample diluted to ImL gives an emission signal of 6.7 units. A similar solution to which 10 uL of a 0.010M solution of LINO; added gives a signal of 14.6 units. Assuming linearity between the emission signal and the lithium concentration, what is the concentration of lithium in the sample in ppm? 5.9 1.7 2.1 1.1 4.6
Transcribed Image Text:Lithium in a sample is determined by flame emission spectrometry, using a standard additions calibration. 100µL of sample diluted to ImL gives an emission signal of 6.7 units. A similar solution to which 10 uL of a 0.010M solution of LINO; added gives a signal of 14.6 units. Assuming linearity between the emission signal and the lithium concentration, what is the concentration of lithium in the sample in ppm? 5.9 1.7 2.1 1.1 4.6
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