March 29, 2024, 10:58:45 AM
Forum Rules: Read This Before Posting


Topic: Colligtive Properties Lab  (Read 16362 times)

0 Members and 1 Guest are viewing this topic.

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27635
  • Mole Snacks: +1799/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Colligtive Properties Lab
« Reply #15 on: January 27, 2008, 02:47:47 PM »
i still dont understand why teh mass of sulfur increaseed

So we are back at the beginning. Because the solution (in which naphthalene is a solvent) contains not atomic sulfur (S1, molar mass 32) but molecules of sulfur (S8, molar mass 8*32). You are determining molar mass of the DISSOLVED substance, and this dissolved substance is MOLECULAR sulfur.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline needhelp22

  • Regular Member
  • ***
  • Posts: 14
  • Mole Snacks: +0/-0
Re: Colligtive Properties Lab
« Reply #16 on: January 27, 2008, 03:04:17 PM »
okay i understand that, only question i have left is why it should be 250/ s8, any specific reason or is that just the way experimenst ahve gone in the past

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27635
  • Mole Snacks: +1799/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Colligtive Properties Lab
« Reply #17 on: January 27, 2008, 03:38:00 PM »
S8 is confirmed experimentally on many occasions. Just like O2 is O2 and H2O is H2O.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Sponsored Links