November 24, 2024, 03:00:56 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: preparation of Co(en)3Cl3  (Read 7630 times)

0 Members and 1 Guest are viewing this topic.

Offline McCoy

  • Regular Member
  • ***
  • Posts: 87
  • Mole Snacks: +4/-2
preparation of Co(en)3Cl3
« on: September 25, 2008, 03:48:32 PM »
I did an experiment with the following reagents to prepare Co(en)3Cl3 :1,2 diaminoethane and 1.6g CoCl2.6H2O and the result was quite astonishing. The product(Co(en)3Cl3 ) has more mass than the reactants! Where did the law of conservation of mass go?
Logged

Online Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27861
  • Mole Snacks: +1813/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: preparation of Co(en)3Cl3
« Reply #1 on: September 25, 2008, 03:52:59 PM »
Quote from: McCoy on September 25, 2008, 03:48:32 PM
Where did the law of conservation of mass go?

It either lost with a lousy lab technique or with a lack of drying.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline McCoy

  • Regular Member
  • ***
  • Posts: 87
  • Mole Snacks: +4/-2
Re: preparation of Co(en)3Cl3
« Reply #2 on: September 25, 2008, 04:06:38 PM »
okay. Which means the product actually might have water on it when it was weighted!Can this be the most reasonable explanation? thanks
Logged

Online Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27861
  • Mole Snacks: +1813/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: preparation of Co(en)3Cl3
« Reply #3 on: September 25, 2008, 04:11:25 PM »
Assuming you have weighted reagents correctly, that's the first thing I would think about, that your product was contaminated - either with water or with something else.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info
Pages: [1]   Go Up
« previous next »
Sponsored Links