June 12, 2021, 11:02:23 AM
Forum Rules: Read This Before Posting


Topic: Problem of the week - 17/09/2012  (Read 13670 times)

0 Members and 1 Guest are viewing this topic.

Offline DrCMS

  • Chemist
  • Sr. Member
  • *
  • Posts: 1275
  • Mole Snacks: +207/-81
  • Gender: Male
Re: Problem of the week - 17/09/2012
« Reply #15 on: September 19, 2012, 04:45:20 AM »
I agree with Raderford carry on doing them please Borek.  I especially liked the middle one Raderfordd linked to as that involved a bit to completely solve it and is a more real world application of chemistry.  I'd like to see more questions like that that require a bit of thinking about and working out rather than just a google search to find a compound with the right mass/colour/other property etc.  but I enjoy trying to get the right answer to all these questions.

Offline Schrödinger

  • Chemist
  • Sr. Member
  • *
  • Posts: 1162
  • Mole Snacks: +138/-98
  • Gender: Male
Re: Problem of the week - 17/09/2012
« Reply #16 on: September 19, 2012, 05:38:55 AM »
Please do continue. I haven't active in this POTW section, but that's only because I lack chemical knowledge. I am still in the learning phase, getting to know stuff. For instance, I know nothing of several topics like electrochem, thermodynamics, acid-base titration, etc. It will take me atleast a year to master these concepts properly (atleast the basics). But reading this section and going through discussions has always been a pleasure
"Destiny is not a matter of chance; but a matter of choice. It is not a thing to be waited for; it is a thing to be achieved."
- William Jennings Bryan

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7984
  • Mole Snacks: +555/-93
  • Gender: Male
Re: Problem of the week - 17/09/2012
« Reply #17 on: September 19, 2012, 06:31:34 AM »
Yeah, so don't we have 3 possibilities? Just consolidating : pent-2-ene, 2-methylbut-1-ene and 2-methylbut-2-ene.
Theoretically one more example is possible - bromination of CH2TF (T - tritium)
AWK

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 26549
  • Mole Snacks: +1723/-402
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Problem of the week - 17/09/2012
« Reply #18 on: September 19, 2012, 07:30:50 AM »
CH2TF (T - tritium)

That's not an olefin - olefin must be unsaturated.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Offline fledarmus

  • Chemist
  • Sr. Member
  • *
  • Posts: 1676
  • Mole Snacks: +203/-28
Re: Problem of the week - 17/09/2012
« Reply #19 on: September 19, 2012, 08:42:49 AM »
Yes, please continue the problems of the week! I rarely contribute an answer, but I enjoy the process of thinking through the problems and reading what other people come up with. The more-or-less real world applications are my favorites.

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 26549
  • Mole Snacks: +1723/-402
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Problem of the week - 17/09/2012
« Reply #20 on: September 24, 2012, 08:07:14 AM »
I am going to try a problem with a chiral compound once again  :P

As mentioned earlier, there are more possible answers. Generally speaking there are probably infinitely many answers, as every compound with the formula (C5H10Br2)n will have the same bromine percentage.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Sponsored Links