May 20, 2024, 07:47:32 PM
Forum Rules: Read This Before Posting


Topic: Granary rust question with photo  (Read 867 times)

0 Members and 1 Guest are viewing this topic.

Offline polishprodigy93

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Granary rust question with photo
« on: April 14, 2019, 06:50:27 PM »
A) Equation 1: Write the first possible oxidation half-reaction of Fe(s) that produces an iron ion:

B) Using oxidation numbers, describe what is happening in the above reaction.

C) Equation 2: The next possible oxidation reaction of Fe(s) that produces an iron ion is:

D)  Using oxidation numbers, describe what is happening in the above reaction.

E)  Write the oxidation equation that shows how Fe2O3 (s) is produced when the product of equation 1 reacts with H2O(l).

F) Using oxidation numbers, describe what is happening in the above reaction.

So for my first two equations I got below I'm not sure if those are complete however?

Fe(s) -> Fe3+ + 3e-

Fe(s) -> Fe2+ + 2e-
« Last Edit: April 14, 2019, 07:17:14 PM by polishprodigy93 »

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27681
  • Mole Snacks: +1802/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Granary rust question with photo
« Reply #1 on: April 14, 2019, 07:02:12 PM »
You have to show your attempts at solving the problem to receive help, this is a forum policy.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline polishprodigy93

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Re: Granary rust question with photo
« Reply #2 on: April 14, 2019, 07:05:53 PM »
Hi I added and modified my apologies Borek. I wrote the first two equations however I'm not sure if those are complete.
« Last Edit: April 14, 2019, 07:47:52 PM by polishprodigy93 »

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27681
  • Mole Snacks: +1802/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Granary rust question with photo
« Reply #3 on: April 15, 2019, 02:50:50 AM »
While technically it is possible to oxidize Fe directly to Fe(III), in practice it is a stepwise process.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Sponsored Links