December 22, 2024, 02:52:26 PM
Forum Rules: Read This Before Posting


Topic: Average Velocity in terms of Absolute Temp + boiling point-pressure  (Read 13718 times)

0 Members and 1 Guest are viewing this topic.

Offline Laker12

  • Regular Member
  • ***
  • Posts: 23
  • Mole Snacks: +0/-0
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #15 on: December 10, 2006, 03:11:03 PM »
HCHO - Hydrogen Bond?

Offline Yggdrasil

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 3215
  • Mole Snacks: +485/-21
  • Gender: Male
  • Physical Biochemist
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #16 on: December 10, 2006, 03:44:03 PM »
You can see the structure of HCHO here.  Will HCHO form hydrogen bonds?

Offline Laker12

  • Regular Member
  • ***
  • Posts: 23
  • Mole Snacks: +0/-0
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #17 on: December 10, 2006, 04:52:12 PM »
Is there a site around that can give explanations when it comes to the different types of bonds? Maybe something a little simpler than wikipedia..?

Offline Donaldson Tan

  • Editor, New Asia Republic
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 3177
  • Mole Snacks: +261/-13
  • Gender: Male
    • New Asia Republic
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #18 on: December 10, 2006, 05:55:01 PM »
Hydrogen bonding is the strongest type of intermolecular bonding.
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006

Offline Yggdrasil

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 3215
  • Mole Snacks: +485/-21
  • Gender: Male
  • Physical Biochemist
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #19 on: December 10, 2006, 05:59:18 PM »
@Laker12
Most chemistry text books should have good explanations of intermolecular bonding.  You should review the information there.

@geo
Are hydrogen bonds stronger than salt bridges (ionic bonds)?

Offline Laker12

  • Regular Member
  • ***
  • Posts: 23
  • Mole Snacks: +0/-0
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #20 on: December 10, 2006, 06:40:08 PM »
Yeah I looked it over in my chem book, but it's a little complex. Could you maybe toss me another example of a hydrogen bond that isn't one of the things I listed? Just so I get a few ideas of how it looks...

Offline Donaldson Tan

  • Editor, New Asia Republic
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 3177
  • Mole Snacks: +261/-13
  • Gender: Male
    • New Asia Republic
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #21 on: December 11, 2006, 11:26:11 AM »
Hydrogen bonding is the strongest type of intermolecular bonding.

@geo
Are hydrogen bonds stronger than salt bridges (ionic bonds)?

Since when salt bridges are considered a type of intermolecular bond?
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006

Offline Yggdrasil

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 3215
  • Mole Snacks: +485/-21
  • Gender: Male
  • Physical Biochemist
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #22 on: December 11, 2006, 02:40:24 PM »
@Laker

You can think of hydrogen bonding as an interaction between a hydrogen bond donor and a hydrogen bond acceptor.  A hydrogen bond donor has a hydrogen bonded to an F, O, or N, and a hydrogen bond acceptor has a lone pair on an F, O, or N.  In the hydrogen bond, the hydrogen from the donor interacts with the lone pair on the acceptor to form the hydrogen bond.  Note: molecules can act as both hydrogen bond donors and acceptors.

For example, water can act as both a donor and acceptor since it has a lone pair (two actually) on the oxygen and two hydrogens bonded to an oxygen.  In a mixture of water and formaldehyde, water can act as a donor and formaldehyde, because it has a lone pair on the carbonyl oxygen, can act as an acceptor.  However, in a pure solution of formaldehyde, there will be no hydrogen bonds.  Even though formaldehyde can act as a hydrogen bond acceptor, there are no hydrogen bond donors.  In formaldehyde, the hydrogens are bonded to carbon and not one of the FON atoms required to make the molecule a hydrogen bond donor.

@geo
Salt bridges are common in protein-protein interactions (e.g. interactions between positively-charged and negatively-charged sidechains) and protein-protein interactions are a class of intermolecular interaction.

Offline Donaldson Tan

  • Editor, New Asia Republic
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 3177
  • Mole Snacks: +261/-13
  • Gender: Male
    • New Asia Republic
Re: Average Velocity in terms of Absolute Temp + boiling point-pressure
« Reply #23 on: December 11, 2006, 05:08:19 PM »
@geo
Salt bridges are common in protein-protein interactions (e.g. interactions between positively-charged and negatively-charged sidechains) and protein-protein interactions are a class of intermolecular interaction.

Oh! That salt bridge, not the electrochemical cell one. I learned something new today.
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006

Sponsored Links