1st Class - March 15th

weedar · Tue Mar 08, 2005 3:36 pm

Beeing a damn foreigner I have no idea what level of chemistry this course
is at, does it require any prior knowledge of chemistry?

Guest · Wed Mar 09, 2005 2:21 pm

Ok, I halfway through the first week, and I have been spending 10 hours a day at it,
no, no previous experience is required, as the courses are introductory,
So on the weekend, I will write up the first week,
I have all the notes, lectures, etc, so It shouldn't be too bad,

Intro chem2A and intro maths for chem 1a,

I have found it really exciting, and enjoyable so far,
I've sat the first maths test, and got a high distinction, whoooh!!

So, your gonna need access to a scientific calculator,
if you haven't you'll need to use
www.calculator.com, like I have been-smile,

I walk around the labs, and I am speechless,

syn

Jaw Clenching · Thu Mar 10, 2005 3:14 am

This is a great idea. I wish to participate in this learning experience.

jackoozzi · specialist

Windows has a scientific calculator built in is that ok
You mean those extra button actually have a purpose

icecool · Insistent Chemist

When we are further in the learning progress I am also willing to teach some organic chemistry to you people.
I am studying this myself out of this book:

"Solomon&Fryhle
Organic Chemistry eight edition."

Anyway I'm talking about racemic mixtures here and about optical configuration etc. with R and S and stereocenter.

Guest · Thu Mar 10, 2005 1:40 pm

The course thus far is dealing with all the basic's
Like avogadro's number, how many grams of an element to a mole,
Basic chemical equations, and balancing, understanding the periodic chart,
and understanding valancies, of the common elements and compounds,
So as long as I stay a week in front of what I post here, we should be fine,

So in about two weeks, i will present the first test,
I am speeking with nazlfrag, the coder, to make the tests online, as they are organised in true/false answers,
With any luck, we should be able to mark them automatically, and return your grades,
I will provide all the lecture notes, and papers, so there is no excuse, not to get a great mark,

This is a learning tool for myself as well, so I look forward to doing this, on saturday,

To think by the end of next week, you will of improved your chemical knowledge,
It is a powerful thing to know how it all works,
Goodluck to all of us,!

I think the hardest thing we've learnt this week is remembering the valencies of some of the not so common comounds,

Carbonates and sulfates, Co3's and So4's have a valency of -2,
Others like Bicarbonate Hco3, hydrogen sulfates HSo4's have -1,

So elements like sodium Na(formerly Natrium) that has a valency of +1
will bond with sulfates, ie Naso4, NaHCo3,

But if we use say the sulfates or carnonates, we get
Na2Co3, and Na2so4, etc, notice the 2 after the Na,
But with some group 2 elements like Calcium, or Zinc, which have a valency of 2+,
We see the effect,
Ie CaCO3, or ZnSO4, valency must be add up to a neutrl charge,
Thus lets have a look at a common one we use here-
Cacl2-Since chlorine has a valency of -1(ie Nacl)Na+-Cl-
then we know that Ca, must have a valency of 2+,
Ca(2+) +(Cl-)2,

So this is what we will be learning, it makes all the pieces of the puzzle fit,

For a something to do, before we start, It will help to know the first 30 elements,

Syn

zimbardorulesall · Fri Mar 11, 2005 3:31 am

This is a great chance to expand my chemical knowledge, awaiting the 15th , 5 more days!

icecool · Insistent Chemist

Ok of course you start with the basic but just that you know IF you need my help.
I'm willing to help... Wink

Guest · Sat Mar 12, 2005 5:29 pm

We'd love your help,
Were going to need it,

thanks

syn
(must of been a crossed converstaion, input is vital,)

0xYg3n · Mon Mar 14, 2005 12:19 am

sweet, I would like to participate as well. directions to the book store? hehe

java · Consumer

Here is a good ref to start ........java

http://www.chemicalelements.com/groups/alkali.html

0xYg3n · Tue Mar 15, 2005 1:04 am

alright, sweet, thx java.

jackoozzi · specialist

Good link thanks java

2spun · The Resistor

well as it is the 15th,
out of some/of nowhere swiy has to cut class
the frist day and week? so goes' life some times.
you all can belive he's not happy about it.
if not heard word by 7 days from now then swiy has found himslef in a fix,
swiy has left instruct tho with the other 1/2.
just say'n no worries
see you all soon
keep up the good work
spun out for now

java · Consumer

I had my pencil's sharpened and my notebook , but no classes today? Maybe I missed the room where the lesson is to take place.......java