Class notes
Chemical bonding & Molecular structure
- Course
- CEM1000W (CEM1000W)
- Institution
- University Of Cape Town (UCT)
Lecture notes and summary of the work covered in weeks 8 - 10
[Show more]
Seller
Follow
Content preview
Chemical Bonding 8 Molecular structureDNLBFN003
, ewis dot structure Net energy transfer =/c- + EH
7?
I: :?
& -4
'
PES OF BONDING
onic bonding .
Hard -
doesn't bend
- 2 atoms with a
large difference in Electro negatiuities (a metal r a non -
metal )
-
Brittle
-
transfer of electrons from metal to non -
metal
-
Rigid cracks without
typically soluble in water
-
covalent
•
2 non -
metals with a low difference in electronegativity (SEN)
•
Sharing of electrons
Metal ic
•
2 metals electron
pooling with metal cores in a sea of delocalised electrons (é )
Couomb's Law
"
-
= 9%2 E = Fxr
"
.
-
.
- =
492 1<=9,09×109 Ii?m
Lattice Energy
change required ionic solid into gaseous ions
energy to 1 moi ol
•
its
separate
can't use coulomb's law to predict Hess 's Law
-
-
. . use
L
tess 's to calculate Lattice
aw
Energy
1h of an for the individual reactions that make it up
overall reaction is the or the
enthalpy changes
-
sum
enthalpy in chemical reaction is in dependant between the initial and final states
a of the
pathway
'
.
Born Haber cycle -
-
the sum of Sh = net 1h
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller bendaniel. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R80,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53068 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now