A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets weighing a total of 13.7421 g was turned into fine powder. A scoop of this powder weighing 2.7544 g was then dissolved and precipitated as Fe(OH)3 which was then rinsed and ignited to a constant weight as Fe₂O3 (159.69 g/mol). The recorded constant weight of Fe₂O3 is 0.2629 g. a. What is the %Fe (55.85 g/mol) content of the supplement? b. What is the iron content of the supplement reported as g FeSO4.7H₂O (277.908 g/mol) tablet? per
A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets weighing a total of 13.7421 g was turned into fine powder. A scoop of this powder weighing 2.7544 g was then dissolved and precipitated as Fe(OH)3 which was then rinsed and ignited to a constant weight as Fe₂O3 (159.69 g/mol). The recorded constant weight of Fe₂O3 is 0.2629 g. a. What is the %Fe (55.85 g/mol) content of the supplement? b. What is the iron content of the supplement reported as g FeSO4.7H₂O (277.908 g/mol) tablet? per
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter19: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 14E: A 2.5624-g sample of a pure solid alkali metal chloride is dissolved in water and treated with...
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