April 19, 2024, 12:44:09 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: 1 [2]   Go Down

Topic: Cr(III) amine complex  (Read 8201 times)

0 Members and 1 Guest are viewing this topic.

Offline Rutherford

  • Sr. Member
  • *****
  • Posts: 1868
  • Mole Snacks: +60/-29
  • Gender: Male
Re: Cr(III) amine complex
« Reply #15 on: February 25, 2013, 12:44:21 PM »
If no oxygen, chromium will remain in +2 oxidation state.
Logged

Offline XGen

  • Full Member
  • ****
  • Posts: 127
  • Mole Snacks: +9/-4
Re: Cr(III) amine complex
« Reply #16 on: February 25, 2013, 10:07:12 PM »
Doesn't it start and end in the 2+ state?
Cr[(NH3)5Cl]Cl2
Logged

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27652
  • Mole Snacks: +1800/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Cr(III) amine complex
« Reply #17 on: February 26, 2013, 04:28:37 AM »
Quote from: XGen on February 25, 2013, 10:07:12 PM
Doesn't it start and end in the 2+ state?
Cr[(NH3)5Cl]Cl2

This is Cr3+.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline Radu

  • Regular Member
  • ***
  • Posts: 87
  • Mole Snacks: +2/-0
Re: Cr(III) amine complex
« Reply #18 on: April 17, 2013, 10:54:31 AM »
I don't think it's got anything to do with oxygen. I mean a complex that stands for that nitrogen percentage is
[Cr(NH3)5Cl]2Cl(I haven't found another one yet) . The redox equation occurs with transforming the oxygen into water, and Cr2+ into Cr3+. The hydrogen comes from the ammonium chloride.  Thus, the balanced equation may be:
   4 CrCl2 + 16 NH3 + 4 NH4Cl + O2---------- 4 [Cr(NH3)5Cl]2Cl + 2H2O.
 
Logged

Offline Rutherford

  • Sr. Member
  • *****
  • Posts: 1868
  • Mole Snacks: +60/-29
  • Gender: Male
Re: Cr(III) amine complex
« Reply #19 on: April 17, 2013, 12:39:33 PM »
Now, if we remove the oxygen, there won't be a redox reaction happening, so I don't quite understand what you meant by:
Quote
I don't think it's got anything to do with oxygen.
Logged
Pages: 1 [2]   Go Up
« previous next »
Sponsored Links