INTEC Chemistry Blog

‘International Education College’ Page

Posted on: July 10, 2012

This page will host links to ALL posts relevant to ‘International Education College’

0.5) Chemistry Specification-Syllabus 2008
0.6) AS Chemistry BOOKS (edexcel exam board)
0.7) Want the Data book? Click here, after, select  ‘Teacher Support Materials’, then ‘Teaching resources’ then select the pdf called ‘Teaching resources – Data booklet
0.8) — null —
1) INTEC ALCH10 Schedule jul-nov-2012
2) —  GENERAL Chem Questions by INTEC chemistry students —
3) 1.3 Formulae, equations and amounts of substance
4) 1.4 Energetics
5) 1.5 Atomic structure and the periodic table
6) 1.6 Bonding
7) 1.7 Introductory organic chemistry
8) 2.3 Shapes of molecules and ions
9) 2.4 Intermediate bonding and bond polarity
10) 2.5 Intermolecular forces
11) 2.6 Redox
12) 2.7 The periodic table — groups 2 and 7
13) 2.8 Kinetics
14) 2.9 Chemical equilibria
15) 2.10 Organic chemistry
16) 2.11 Mechanisms
17) 2.12 Mass spectra and IR
18) 2.13 Green chemistry
19) AS Lab stuff July 2012 – Nov 2012
20) Edexcel website for Chemistry
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22) –null–

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2 Responses to "‘International Education College’ Page"

assalamualaikum

i’ve a question about polar ??
what is meant by polar and non polar??
what is the difference between polar molecule and polar bond ??

tqvm… from eg5 2012..

Salam. Nice to hear from you EG5 🙂

The molecule is polar when it has an overall ‘dipole’ meaning the molecule as a whole has uneven charge distribution.

You can check to see if a molecule is polar by adding up the individual bond dipoles. These bond dipoles are vector quantities i.e. they have size and direction. They are added nose to tail. CO2 has polar bonds (O is more electronegative than C) but one polar bond cancels out the other polar C=O bond on the the opposite side of the molecule so CO2 is non-polar. H-F id polar. It only has one bond dipole (points towards the F atom).

Summary:
Polar molecules have polar bonds which do not cancel out.
non-polar molecules have polar bonds which cancel or, non polar bonds (e.g. graphite, sulfur etc)

Does that help?

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