INTERMOLECULAR FORCES (IMF)

 
INTERMOLECULAR FORCES (IMF)
 
RYAN KIDDEY
UNIVERSITY OF AKRON RET PROGRAM 2018
LESSON: THAT’S SLICK! USING POLYMERS TO CLEAN OIL SPILLS
 
INTRA
MOLECULAR 
BOND
 VS
INTER
MOLECULAR 
FORCE
 
INTRA
MOLECULAR BONDS ARE CHEMICAL BONDS.
COVALENT
IONIC
METALLIC
THINK OF 
INTRA
NET.  MOST BUSINESSES HAVE AN INTERNAL NETWORK THAT ‘BONDS’ ALL OF
THE COMPUTERS IN THE BUILDING TOGETHER.  OUTSIDE COMPUTERS CANNOT INTERACT WITH
THE NETWORK OF COMPUTERS IN THE BUILDING.
SOMETHING WOULD NEED TO ‘CONNECT’ THE COMPUTERS INSIDE WITH THE COMPUTERS OUTSIDE.
 
INTRA
MOLECULAR 
BOND
 VS
INTER
MOLECULAR 
FORCE
 
INTER
MOLECULAR FORCE IS AN INTERACTION BETWEEN TWO MOLECULES DUE TO POLARITY
POSITIVE POLE OF ONE MOLECULE INTERACTING WITH THE NEGATIVE POLE OF ANOTHER.
 
 
 
 
 
THIS IS LIKE THE 
INTER
NET.  THE INTERNET IS THE ‘FORCE’ THAT WILL CONNECT THE COMPUTERS ON
AN INTRANET NETWORK TO THE OUTSIDE WORLD.
JUST BECAUSE YOU CAN VISIT THE FBI’S WEBSITE VIA THE 
INTER
NET, IT DOESN’T MEAN YOU CAN
GET INTO THEIR NETWORK (
INTRA
NET).
 
FOUR KINDS OF INTERMOLECULAR FORCES
 
INTERMOLECULAR 
FORCES
 IN THE ORDER OF WEAKEST TO STRONGEST:
1.
DISPERSION FORCE
2.
DIPOLE-DIPOLE FORCE
3.
HYDROGEN BOND
4.
ION-DIPOLE FORCE
 
INTERMOLECULAR FORCES
 
PROFESSOR DAVE
WITHOUT INTERMOLECULAR FORCES
THERE WOULD BE NO SOLID OR LIQUID
STATE TO MATTER.
THE STRONGER THE IMF THE HIGHER THE
BOILING POINT… WHY?
 
 
THE WEAKER THE IMF THE LOWER THE
BOILING POINT… WHY?
 
WHAT IS A DIPOLE?
 
BEFORE WE DEFINE EACH TYPE OF INTERMOLECULAR FORCE LET’S DEFINE 
DIPOLE.
DIPOLE – 
A MOLECULE THAT HAS AN UNEVEN DISTRIBUTION OF ELECTRONS ACROSS THE
MOLECULE.  A DIPOLE OCCURS IN A POLAR MOLECULE.
IN OTHER WORDS – ONE SIDE OF THE MOLECULE HAS MORE ELECTRONS THAN THE OTHER SIDE.
DRAW AN EXAMPLE OF A MOLECULE WITH A DIPOLE BELOW:
 
DEFINING EACH IMF: 
DISPERSION FORCE
 
THE 
DISPERSION FORCE 
IS ALSO CALLED
“LONDON DISPERSION FORCE” OR “VAN DER WAALS FORCE”
THE DISPERSION FORCE IS THE 
WEAKEST
 OF ALL IMFS AND THE FORCE IS EASILY BROKEN.
HOWEVER, THE DISPERSION FORCE CAN BECOME VERY STRONG IN A LONG MOLECULE, EVEN IF THE
MOLECULE IS NONPOLAR.
EVERY
 MONOATOMIC ATOM (HELIUM, NEON, ARGON, ETC.) AND 
EVERY
 MOLECULE EXPERIENCE
THE DISPERSION FORCE.
THE DISPERSION FORCE IS 
CAUSED
 BY A 
MOMENTARY DIPOLE 
IN THE ATOM
DRAW A PICTURE OF HELIUM BELOW:
 
DEFINING EACH IMF: 
DIPOLE-DIPOLE FORCE
 
DIPOLE-DIPOLE FORCE IS AN INTERACTION BETWEEN TO POLAR MOLECULES
A POLAR MOLECULE HAS A PERMANENT DIPOLE
EXAMPLES:
 
DEFINING EACH IMF: 
HYDROGEN BOND
 
HYDROGEN BOND 
– NOT A BOND, NOT A BOND, NOT A BOND, NOT A BOND!!!!!
THE 
HYDROGEN BOND 
IS A SPECIAL TYPE OF DIPOLE-DIPOLE FORCE THAT IS STRONGER THAN A
NORMAL DIPOLE-DIPOLE FORCE!
THE FOLLOWING BONDS (ACTUAL BONDS) CREATE A VERY STRONG DIPOLE
O – H
N – H
F – H
WHEN THE O, N, OR F COME INTO CONTACT WITH ANOTHER MOLECULE’S HYDROGEN AN
INTERMOLECULAR FORCE WILL OCCUR – CALLED A HYDROGEN BOND.
WATER IS A GREAT EXAMPLE OF HYDROGEN BONDING IN ACTION!
 
DEFINING EACH IMF: 
HYDROGEN BONDING
 
DRAW A FEW PICTURES OF SUBSTANCES HYDROGEN BONDING:
 
DEFINING EACH IMF: 
ION-DIPOLE FORCE
 
THE ION-DIPOLE FORCE IS THE STRONGEST IMF
OCCURS WHEN A POLAR MOLECULE (MOLECULE WITH A DIPOLE) COMES IN CONTACT WITH
AN ION.
THIS IS WHY SOME IONIC COMPOUNDS WILL DISSOLVE IN WATER.
DRAW A PICTURE BELOW:
 
REFERENCES
 
TRO, “CHEMISTRY: A MOLECULAR APPROACH”, 3E
HTTPS://EN.WIKIPEDIA.ORG/WIKI/FILE:WATER-3D-BALLS.PNG
HTTPS://SCIENCESTRUCK.COM/INTERMOLECULAR-FORCES-WITH-EXAMPLES
HTTPS://WWW.QUORA.COM/WHAT-IS-AN-INTRAMOLECULAR-BOND
HTTP://MBOCCHINI.BLOGSPOT.COM/2011/02/INTERMOLECULAR-FORCES.HTML
HTTPS://COURSES.VCU.EDU/PHY-RHG/ASTRON/HTML/MOD/018/INDEX3.HTML
HTTPS://WWW.PINTEREST.COM/PIN/830773462482297448/
HTTPS://CHEMISTRY.STACKEXCHANGE.COM/QUESTIONS/59665/WATER-HYDROGEN-
BOND/59958
 
 
 
 
 
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Exploring the concepts of intramolecular bonds versus intermolecular forces, the impact of intermolecular forces on states of matter, different types of intermolecular forces, and the significance of dipoles in chemistry. Dive into the world of IMF with visual aids and real-world analogies.

  • Intermolecular forces
  • Chemistry concepts
  • Dipoles
  • Intramolecular bonds
  • State of matter

Uploaded on May 16, 2024 | 2 Views


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  1. INTERMOLECULAR FORCES (IMF) RYAN KIDDEY UNIVERSITY OF AKRON RET PROGRAM 2018 LESSON: THAT S SLICK! USING POLYMERS TO CLEAN OIL SPILLS

  2. INTRAMOLECULAR BOND VS INTERMOLECULAR FORCE INTRAMOLECULAR BONDS ARE CHEMICAL BONDS. COVALENT IONIC METALLIC THINK OF INTRANET. MOST BUSINESSES HAVE AN INTERNAL NETWORK THAT BONDS ALL OF THE COMPUTERS IN THE BUILDING TOGETHER. OUTSIDE COMPUTERS CANNOT INTERACT WITH THE NETWORK OF COMPUTERS IN THE BUILDING. SOMETHING WOULD NEED TO CONNECT THE COMPUTERS INSIDE WITH THE COMPUTERS OUTSIDE.

  3. INTRAMOLECULAR BOND VS INTERMOLECULAR FORCE INTERMOLECULAR FORCE IS AN INTERACTION BETWEEN TWO MOLECULES DUE TO POLARITY POSITIVE POLE OF ONE MOLECULE INTERACTING WITH THE NEGATIVE POLE OF ANOTHER. THIS IS LIKE THE INTERNET. THE INTERNET IS THE FORCE THAT WILL CONNECT THE COMPUTERS ON AN INTRANET NETWORK TO THE OUTSIDE WORLD. JUST BECAUSE YOU CAN VISIT THE FBI S WEBSITE VIA THE INTERNET, IT DOESN T MEAN YOU CAN GET INTO THEIR NETWORK (INTRANET).

  4. FOUR KINDS OF INTERMOLECULAR FORCES INTERMOLECULAR FORCES IN THE ORDER OF WEAKEST TO STRONGEST: 1. DISPERSION FORCE 2. DIPOLE-DIPOLE FORCE 3. HYDROGEN BOND 4. ION-DIPOLE FORCE

  5. INTERMOLECULAR FORCES PROFESSOR DAVE WITHOUT INTERMOLECULAR FORCES THERE WOULD BE NO SOLID OR LIQUID STATE TO MATTER. THE STRONGER THE IMF THE HIGHER THE BOILING POINT WHY? THE WEAKER THE IMF THE LOWER THE BOILING POINT WHY?

  6. WHAT IS A DIPOLE? BEFORE WE DEFINE EACH TYPE OF INTERMOLECULAR FORCE LET S DEFINE DIPOLE. DIPOLE A MOLECULE THAT HAS AN UNEVEN DISTRIBUTION OF ELECTRONS ACROSS THE MOLECULE. A DIPOLE OCCURS IN A POLAR MOLECULE. IN OTHER WORDS ONE SIDE OF THE MOLECULE HAS MORE ELECTRONS THAN THE OTHER SIDE. DRAW AN EXAMPLE OF A MOLECULE WITH A DIPOLE BELOW:

  7. DEFINING EACH IMF: DISPERSION FORCE THE DISPERSION FORCE IS ALSO CALLED LONDON DISPERSION FORCE OR VAN DER WAALS FORCE THE DISPERSION FORCE IS THE WEAKEST OF ALL IMFS AND THE FORCE IS EASILY BROKEN. HOWEVER, THE DISPERSION FORCE CAN BECOME VERY STRONG IN A LONG MOLECULE, EVEN IF THE MOLECULE IS NONPOLAR. EVERY MONOATOMIC ATOM (HELIUM, NEON, ARGON, ETC.) AND EVERY MOLECULE EXPERIENCE THE DISPERSION FORCE. THE DISPERSION FORCE IS CAUSED BY A MOMENTARY DIPOLE IN THE ATOM DRAW A PICTURE OF HELIUM BELOW:

  8. DEFINING EACH IMF: DIPOLE-DIPOLE FORCE DIPOLE-DIPOLE FORCE IS AN INTERACTION BETWEEN TO POLAR MOLECULES A POLAR MOLECULE HAS A PERMANENT DIPOLE EXAMPLES:

  9. DEFINING EACH IMF: HYDROGEN BOND HYDROGEN BOND NOT A BOND, NOT A BOND, NOT A BOND, NOT A BOND!!!!! THE HYDROGEN BOND IS A SPECIAL TYPE OF DIPOLE-DIPOLE FORCE THAT IS STRONGER THAN A NORMAL DIPOLE-DIPOLE FORCE! THE FOLLOWING BONDS (ACTUAL BONDS) CREATE A VERY STRONG DIPOLE O H N H F H WHEN THE O, N, OR F COME INTO CONTACT WITH ANOTHER MOLECULE S HYDROGEN AN INTERMOLECULAR FORCE WILL OCCUR CALLED A HYDROGEN BOND. WATER IS A GREAT EXAMPLE OF HYDROGEN BONDING IN ACTION!

  10. DEFINING EACH IMF: HYDROGEN BONDING DRAW A FEW PICTURES OF SUBSTANCES HYDROGEN BONDING:

  11. DEFINING EACH IMF: ION-DIPOLE FORCE THE ION-DIPOLE FORCE IS THE STRONGEST IMF OCCURS WHEN A POLAR MOLECULE (MOLECULE WITH A DIPOLE) COMES IN CONTACT WITH AN ION. THIS IS WHY SOME IONIC COMPOUNDS WILL DISSOLVE IN WATER. DRAW A PICTURE BELOW:

  12. REFERENCES TRO, CHEMISTRY: A MOLECULAR APPROACH , 3E HTTPS://EN.WIKIPEDIA.ORG/WIKI/FILE:WATER-3D-BALLS.PNG HTTPS://SCIENCESTRUCK.COM/INTERMOLECULAR-FORCES-WITH-EXAMPLES HTTPS://WWW.QUORA.COM/WHAT-IS-AN-INTRAMOLECULAR-BOND HTTP://MBOCCHINI.BLOGSPOT.COM/2011/02/INTERMOLECULAR-FORCES.HTML HTTPS://COURSES.VCU.EDU/PHY-RHG/ASTRON/HTML/MOD/018/INDEX3.HTML HTTPS://WWW.PINTEREST.COM/PIN/830773462482297448/ HTTPS://CHEMISTRY.STACKEXCHANGE.COM/QUESTIONS/59665/WATER-HYDROGEN- BOND/59958

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