Download A) Molecular Compounds

1
Chapter 3 – Chemical Compounds
I.
Chemical Compounds and Their
Formulas
A) Molecular Compounds
B) Ionic Compounds
II.
The Mole and Chemical Compounds
A) Calculations
B) Empirical Formulas
III.
Naming Chemical Compounds
A) Tools – Oxidation States
B) Inorganic Compounds
C) Organic Compounds (briefly)
2
I. Chemical Compounds and Their
Formulas
TYPES OF COMPOUNDS
A) Molecular Compounds
Covalent Bonds -
H
I
B) Ionic Compounds -
Na
F
https://images.rapgenius.com/2bd5jl7l5dbsojnn2y6nuqee5.300x310x1.png, http://cdn8.triplepundit.com/wp-content/uploads/2012/11/sharing-economy.jpg
3
A) Molecular Compounds
-
Molecular compounds can be broken down into
individual particles that all have the same
chemical properties
Chemical Formula (Any type of compound)
chemical formula 
1.
2.
C4H8S
http://a.scpr.org/i/4ce866865a9037d4382a48a1c4aacfd2/115613-full.jpg, http://www.olehenriksen.com/blog/wp-content/uploads/2010/01/lasmog.jpg
4
Types of Chemical Formulas for Molecular Compounds
1. Molecular Formula
- formula of an actual molecule
2. Empirical Formula
- provides relative numbers of atoms in a
molecule
Question?
The empirical formula for CFC-114 is CClF2, what
is its molecular formula?
http://previews.123rf.com/images/chaosmaker/chaosmaker1012/chaosmaker101200573/8504314-Skull-and-bones-danger-triangular-vector-sign-Stock-Vector.jpg,
http://41.media.tumblr.com/tumblr_m9fk5hBHuW1rszmkso1_500.jpg
5
Visualizing Molecules
Acetic Acid
E.F.
-
M.F.
-
Structural Formula -
Molecular Model
-
6
In Nature, Some Elements Exist as Molecules
David Hasselhof
David BrINClHOF
7
B) Ionic Compounds
-
Ionic compounds do not exist as discreet units
but rather a sea of cations surrounded by a sea of
anions and vice versa
Chemical Formula
- the chemical formula for ionic compounds is the
smallest whole number ratio of cations to anions
that is electrically neutral
Examples
a) Li and O
b) Mg and PO43-
8
II. The Mole and Chemical Compounds
1. Calculating the Mass of a Single Molecule or Formula Unit
Molecular Mass
-
Formula Mass
-
Examples
NO2
(molecular mass or Formula Mass)
Na2S
(molecular mass or Formula Mass)
9
2.Calculating the Mass of a Mole of Molecules or Formula Units
Definitions and Quantities
Na2S
NO2
10
A) Calculations
Molecules /
Chemical Molecular Mass
Molar Mass Formula Units
Formula / Formula Mass
in One Mole
CO2
KI
Conversion Factors
11
Examples
1. How many Chloride ions are in 0.0750 grams of
aluminum chloride?
2. What is the mass, in grams, of 7.70x1020 molecules of
C8H10N4O2?
12
3. How many grams of C are contained in 75.0 mL
of halothane (d = 1.871 g/mL)?
Halothane  C2HBrClF3