Fe in ore can be analyzed by oxidizing Fe to Fe2+ then titrating Fe2+with K2Cr2O7 . See equation below. K2Cr2O7(aq) + 6Fe2+(aq) + 14H+(aq) → 2Cr3+(aq) + 2K+(aq) + 6Fe3+(aq) + 7H2O(l) What type of reaction is involved in the titration ? a. complexometric b. redox c. acid- base d. precipitation

Fe in ore can be analyzed by oxidizing Fe to Fe2+ then titrating Fe2+with K2Cr2O7 . See equation below. K2Cr2O7(aq) + 6Fe2+(aq) + 14H+(aq) → 2Cr3+(aq) + 2K+(aq) + 6Fe3+(aq) + 7H2O(l) What type of reaction is involved in the titration ? a. complexometric b. redox c. acid- base d. precipitation

General Chemistry - Standalone book (MindTap Course List)

11th Edition

ISBN:9781305580343

Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Chapter21: Chemistry Of The Main-group Elements

Section: Chapter Questions

Problem 21.171QP

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

Fe in ore can be analyzed by oxidizing Fe to Fe²⁺thentitrating Fe²⁺with K₂Cr₂O₇. See equation below.

K₂Cr₂O₇(aq) + 6Fe²⁺(aq) + 14H⁺(aq) →

2Cr³⁺(aq) + 2K⁺(aq) + 6Fe³⁺(aq) + 7H2O(l)

What type of reaction is involved in the titration ?

complexometric

redox

acid- base

precipitation

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