The content of manganese (Mn) in steel was determined spectrophotometrically and with the use of the standard addition method. An unknown sample of Mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. When 5.00 mL of solution containing 95.5 ppm Mn was added to 50.0 mL of the unknown steel solution (digested sample), the absorbance was 0.248. Calculate the concentration, in parts-per-million (ppm), of Mn in the digested steel sample solution. NOTE: When a problem does not state diluted to a given volume, then you consider the sum of the volumes for Vf. A. 9.55 B. 20.2 C. 5.68
The content of manganese (Mn) in steel was determined spectrophotometrically and with the use of the standard addition method. An unknown sample of Mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. When 5.00 mL of solution containing 95.5 ppm Mn was added to 50.0 mL of the unknown steel solution (digested sample), the absorbance was 0.248. Calculate the concentration, in parts-per-million (ppm), of Mn in the digested steel sample solution. NOTE: When a problem does not state diluted to a given volume, then you consider the sum of the volumes for Vf. A. 9.55 B. 20.2 C. 5.68
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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![The content of manganese (Mn) in steel was determined spectrophotometrically and with the use of the standard addition
method. An unknown sample of Mn from a digested steel sample gave an absorbance of 0.185 when analyzed
spectrophotometrically. When 5.00 mL of solution containing 95.5 ppm Mn was added to 50.0 mL of the unknown steel
solution (digested sample), the absorbance was 0.248. Calculate the concentration, in parts-per-million (ppm), of Mn in the
digested steel sample solution. NOTE: When a problem does not state diluted to a given volume, then you consider the
sum of the volumes for Vf.
A. 9.55
B. 20.2
C. 5.68
D. 140
E. 22.1
F. 96.7
G. 6.95](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F70774868-ea05-4fa3-ae6c-7ea4e68d506a%2F6a9e735c-ddc8-4d5f-b49d-95ee599920ce%2F6ka0z3_processed.png&w=3840&q=75)
Transcribed Image Text:The content of manganese (Mn) in steel was determined spectrophotometrically and with the use of the standard addition
method. An unknown sample of Mn from a digested steel sample gave an absorbance of 0.185 when analyzed
spectrophotometrically. When 5.00 mL of solution containing 95.5 ppm Mn was added to 50.0 mL of the unknown steel
solution (digested sample), the absorbance was 0.248. Calculate the concentration, in parts-per-million (ppm), of Mn in the
digested steel sample solution. NOTE: When a problem does not state diluted to a given volume, then you consider the
sum of the volumes for Vf.
A. 9.55
B. 20.2
C. 5.68
D. 140
E. 22.1
F. 96.7
G. 6.95
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