CHEM1811 Lecture Notes - Lecture 2: Sodium Chloride, Molality
36 views3 pages
CHEM1811 Describing composition: summary
Overall, we had:
empirical formula NaCl
number composition 50at.% Na, 50 at.% Cl
mass compositien 39%w/w Na, 61%w/w Cl
Different descriptions for different uses.
CC-BY, Wikipedia
Otwr'Uog eoqadsd
$:
G
ffiwsry
Describing solutions
--rJv
Solutions are a very easy way of
working with chemicals.
r molecules can move around and
react (unlike a solid)
r solution stays in a beaker
(unlike a gas)
r easy to handle a few mL of a
dilute solution rather than a few
mg of a solid powder
l can be pumped easily €C-BY-sA, Vvikipedia
\,,
v
What do we mean by concentration?
The starting point is:
(n=cv)
Often, we want to talk about the rmf*W,cgrentration or rffiftrity:
rfrMr Cen€exr8rfitlofi : * ,"lr,"a .-
and that would then have units of ffiL-l, often abbreviated aBM-
tk.ig6d[ti6r
\6 126 ffi'+mt
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document
This preview shows page 1 of the document.
Unlock all 3 pages and 3 million more documents.
Already have an account? Log in
Get access
Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers
Related textbook solutions
Chemistry: Structure and Properties
2 Edition,
Tro
ISBN: 9780134293936
Basic Chemistry
5 Edition,
Timberlake
ISBN: 9780134138046
Principles of Chemistry Molecular Approach
4th Edition,
Tro
ISBN: 9780134112831
Principles of Chemistry Molecular Approach
3rd Edition, 2014
Tro
ISBN: 9780321971944
Chemistry: Structure and Properties
2nd Edition,
Tro
ISBN: 9780134293936
Chemistry: A Molecular Approach
3rd Edition,
Tro
ISBN: 9780321809247
Chemistry: A Molecular Approach
5th Edition,
Tro
ISBN: 9780134874371
Principles of Chemistry: A Molecular Approach
4th Edition,
Tro
ISBN: 9780134895741
Chemistry: The Central Science
14th Edition, 2017
Brown
ISBN: 9780134414232