|
1
|
- Lecture # 1
- Introduction to Organic Chemistry viewed as an engineer
|
|
2
|
- The ability to compute separates the engineer from the technician. An
education in engineering mathematics generates an insight
into...physical phenomena
- This course requires
- QUALITATIVE components
- QUANTITATIVE components
- EXPERIMENTAL components
|
|
3
|
- QUALITATIVE The generation of ideas, structures, concepts. Results are
expressed in sketches, layouts, schematics and diagrams.
- QUANTITATIVE The computation of the magnitude of the properties in a
qualitative idea. These results are expressed in numbers, usually with
physical units.
- EXPERIMENTAL The use of physical models and tests to compensate for both
qualitative and quantitative uncertainty.
|
|
4
|
|
|
5
|
|
|
6
|
|
|
7
|
|
|
8
|
- All matter consists of tiny particles called atoms
- Atoms are, in turn, made up of three fundamental particles, protons,
neutrons, and electrons
|
|
9
|
- Protons and neutrons are in the nucleus
- Electrons are in orbits around the nucleus
- There are equal numbers of protons (+) and electrons (-)
|
|
10
|
- Protons and neutrons are far more heavy than electrons
- The unit of atomic mass is the mass of a proton or neutron
- Carbon has an atomic mass of 12, the total of protons plus neutrons
|
|
11
|
- Atomic number of an element is the number of protons in the nucleus
- The atomic number identifies the element and distinguishes it from all
other elements
- Thus carbon is the element with atomic number 6
|
|
12
|
- The molecular weight is the sum of the atomic weights of the
constituents of the molecule
- Example: water (H2O), the molecular weight is 16 + 1.01
+1.01= 18.02 atomic mass units
|
|
13
|
- The weight in grams equivalent to the atomic or molecular weight in
atomic mass units
- A mole of water has a weight of 18.02 grams
- A mole of any substance contains AVOGADRO’S number of particles (6.02 x
1023)
|
|
14
|
|
|
15
|
|
|
16
|
|
|
17
|
|
|
18
|
- The shells or orbits which contain the electrons have characteristic
occupancy capacity
- The first three contain 2, 8, and 8 (or 18) respectively
- Atoms tend to combine chemically forming either ionic or covalent bonds
so that the outer orbits are complete
|
|
19
|
|
|
20
|
|
|
21
|
|
|
22
|
|
|
23
|
|
|
24
|
- Read MCain pages 1-12 (today), 12-22
- Send e-mail to me barrufet@spindletop.tamu.edu
|