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An iron containing sample of mass 0.53 g is first treated with HCI(aq) to convert all iron to Fe* then titrated with dichromate solution and required 212.4 ml of 0.0031 M KCr,O, to reach the end point. What is the iron percent in the sample by mass? Fe"(aq) + Cr,O, (aq) - Fe"(aq) + Cr"(aq) (unbalanced) O a. 21.02% O b. 52.53% O c. 26.74% O d. 41.63% O e. 36.79%

An iron containing sample of mass 0.53 g is first treated with HCI(aq) to convert all iron to Fe* then titrated with dichromate solution and required 212.4 ml of 0.0031 M KCr,O, to reach the end point. What is the iron percent in the sample by mass? Fe"(aq) + Cr,O, (aq) - Fe"(aq) + Cr"(aq) (unbalanced) O a. 21.02% O b. 52.53% O c. 26.74% O d. 41.63% O e. 36.79%

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 37QAP: An artificial fruit beverage contains 12.0 g of tartaric acid, H2C4H4O6, to achieve tartness. It is...
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An iron containing sample of mass 0.53 g is first treated with HCI(ag) to convert all iron to Fe* then titrated with dichromate solution and required 212.4 mL of 0.0031 M K,Cr,0, to reach the end point. What is the iron percent in the sample by mass? Fe"(aq) + Cr,O,- (ag) - Fe"(aq) + Cr"(aq) (unbalanced) O a. 21.02% O b. 52.53% Oc. 26.74% O d. 41.63% O e. 36.79%
Transcribed Image Text:An iron containing sample of mass 0.53 g is first treated with HCI(ag) to convert all iron to Fe* then titrated with dichromate solution and required 212.4 mL of 0.0031 M K,Cr,0, to reach the end point. What is the iron percent in the sample by mass? Fe"(aq) + Cr,O,- (ag) - Fe"(aq) + Cr"(aq) (unbalanced) O a. 21.02% O b. 52.53% Oc. 26.74% O d. 41.63% O e. 36.79%
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