7. Analysis of an amine using a back-titration Kjeldahl method resulted in the following equation forP, the percent nitrogen in the amine:P = (mmols acid) – (ml base) (molarity base) (14.01) (100)(mg sample)= (4.75 + 0.03 )- (0.1198) ± 0.0008) (15.00 ± 0.04) (14.01 ) (100)750.0 ± 0.3where the uncertainties are all standard deviations for infinite -sized samples. How will youreport the value for P?

P = (4.75 +- 0.03) - (0.1198 +- 0.0008)(15.00 +-0.04)(14.01)*(100) / (750.0 +- 0.3) = (4.75 +- 0.03)…

Answered: where the uncertainties are all…

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where the uncertainties are all standard deviations for infinite -sized samples. How will you report the value for P?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter24: Introduction To Spectrochemical Methods

Section: Chapter Questions

Problem 24.28QAP

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7. Analysis of an amine using a back-titration Kjeldahl method resulted in the following equation for
P, the percent nitrogen in the amine:
P = (mmols acid) – (ml base) (molarity base) (14.01) (100)
(mg sample)
= (4.75 + 0.03 )- (0.1198) ± 0.0008) (15.00 ± 0.04) (14.01 ) (100)
750.0 ± 0.3
where the uncertainties are all standard deviations for infinite -sized samples. How will you
report the value for P?

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