![subject](/tpl/images/cats/himiya.png)
A 0.9132-gram sample of iron ore is dissolved in aqueous hydrochloric acid. It dissolves completely and in the process, all of the iron goes into solution as Fe2+ ion. The following chemical reaction is a redox reaction and it is the focus of the question:
The acid solution containing all of the Fe2+ is placed in a beaker. A solution of aqueous potassium dichromate is used to fill a burette. A redox titration is performed. A volume of exactly 28.72 mL of 0.05051M K2Cr2O7 (aq) is required to complete the redox titration. The unbalanced redox equation is:
Fe2+(aq) + K2Cr2O7(aq) (in acid) → Fe3+(aq) + Cr3+(aq)
Required:
What is the mass percent iron in the original sample of iron ore? Please show all your work.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:00, bibhu42kumarp7o4ss
At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure
Answers: 1
![image](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 04:31, CassidgTab
Which molecules are more strongly attracted to one another -c3h8o molecules that make up liquid rubbing alcohol or ch4 molecules that make up methane gas
Answers: 3
You know the right answer?
A 0.9132-gram sample of iron ore is dissolved in aqueous hydrochloric acid. It dissolves completely...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.11.2019 21:31
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.11.2019 21:31
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 12.11.2019 21:31
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.11.2019 21:31
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)