Is there any way I can get out of this class???

WHY CHEMISTRY ?

This class

bullshitis

Your first in-class chemistry exercise….

Structure Chemist Organic Chemist Nut case chemist

Can you locate the chemist’s universal obsession…..?

•You can’t see molecules directly.

•You can’t measure molecules directly.

•You can’t watch how molecules react.

Molecules

They’re just too damned small.

Chemistry involves imaginative, BUT deeply abstract metaphors

for things (molecules) that we can’t know directly.

CHEMISTRY…is a 250 year old discipline that can take apart, put back together, manipulate and transform objects (molecules) which are objects we have no chance to directly see nor directly measure.

Thinking Like a Chemist (TLC)

is powerful

WHY CHEMISTRY ?

•Course Website (see also: Course Syllabus)

https://web.alfredstate.edu/fongjd/GenChem1.htm

•Course Syllabus (See also: Course Website)

•Zumdahl Hybrid E-text

•Scientific Calculator

CHEM 1114:

BASIC STUFF YOU NEED

YOUR FIRST ASSIGNMENTS

By Wednesday 2 Sept:•Read Course Syllabus (handout in class)

•Read Fong CV (curriculum vitae) and `A letter from your chemistry 1114 instructor’ Both found under Miscellaneous at course website: https://web.alfredstate.edu/fongjd/GenChem1.htm

•Write me a letter (no longer than 1 page). Tell about yourself and why you’re here. Turn the hard copy in during class (do not e-mail me!). (3 pts)

•Start reading text (Zumdahl & Zumdahl 9th pp. 8-22)

YOUR SECOND ASSIGNMENT:

Prefix symbol Prefix name Power of 10 equivalent

T Tera 1012

G giga 109

M mega 106

k kilo 103

d deci 10-1

c centi 10-2

m milli 10-3

micro 10-6

n nano 10-9

p pico 10-12

By Friday 4 Sept, get this table in your head

see also-table 1.2, pg 10

YOUR THIRD ASSIGNMENT:

OWL/2 electronic homework 1

By Wednesday 10 September(midnight at the latest)

From COURSE OUTLINE

Week dates lecture topics reading1 8/31-9/4 Units, Prefixes, Sig Figs and pp. 8-22

Measurement Concepts: the ground floor

Where do we start to get TLC powerful ?

What is water, ugly human ?

WHY START WITH UNITS ????? (BORING….)

Fundamental SI (le Systeme

International) Units (see Table 1.1, p. 9)

• Length (meters, m)• Mass (kilograms, kg)• time (seconds, s)• Temperature (Kelvin, K)

Basic biggies to

know

• count of stuff (moles, mol)

`mks’

+Chemistry add-on

•Width of a human blood cell: ~0.000002 m

•time for computer to do a single operation: ~ 0.000000003 s

•Nimitz class aircraft carrier weighs:~ 100,000,000 kg

•Distance to Sun: ~13,000,000,000 m

….It’s hard to recognize/remember how many the zeroes….

The “problem’ with the MKS system…

Two ways to keep track of the zeroes and the decimal place:

• scientific notation

• Prefixes (see table 1.2, p. 10)

Example: Width of a human blood cell in scientific notation

0.000002 m

Review of scientific notation:

6 bunny hops to right starting from decimal to form a number (2) which is between 1 and 9….

aka: Bunny hop arithmetic

0.000002 m=decimal scientific notation

2 *10-6 m

•time for computer to do a single operation: ~ 0.000000003 s

•Nimitz class aircraft carrier weighs:~ 100,000,000 kg

•Distance to Sun: ~13,000,000,000 m

In-class board practice converting decimal to scientific notation…count with me !

3*10-9 s

1*10+9 kg

1.3*10+10 m

Prefixes are symbolic versions of powers of 10

Example: 10-3 = m= milli

Unit prefixes(see also-table 1.2, pg 10 know these by Friday)

Prefix symbol Prefix name Power of 10 equivalent

T Tera 1012

G giga 109

M mega 106

k kilo 103

d deci 10-1

c centi 10-2

m milli 10-3

micro 10-6

n nano 10-9

p pico 10-12