I hate chemistry.

[lightningandsnow]

I don't know why I even took it - it's an elective at my grade level where I live.

But I did, in the interest of being "well-rounded".

It's almost 10:00, and I'm still doing a friggin lab writeup and being utterly confused.

Sigh.

On edit: the subject itself is interesting. 11th grade chemistry class, not so much.

[TZ]

1. I had do have two whole years of chemistry in college...

I sympathize...

[KitchenWitch]

20. That is how I feel about Biology.

I LOVE chemistry. Biology confuzzles the fuck out of me.

[DarkTirade]

2. Yeah, I kinda sucked at it too.

One of the few classes I ever had to retake in high school.

Granted, I'd signed up for the gifted one, thinking it would be easy for me. Whoops. :P

[hippywife]

3. I wish I could go back

and take it. Chemistry is cool. All of life is based on it. :hi:

[lightningandsnow]

4. Yes, but all of life is not based on

doing a titration of acetic acid (vinegar), finding out its concentration, and measuring your percent error.

[hippywife]

8. Just a little

stepping stone. ;)

[Pierre.Suave]

14. Are you sure?

From Wiki: http://en.wikipedia.org/wiki/Acetic_acid

"Biochemistry

The acetyl group, derived from acetic acid, is fundamental to the biochemistry of virtually all forms of life. When bound to coenzyme A it is central to the metabolism of carbohydrates and fats. However, the concentration of free acetic acid in cells is kept at a low level to avoid disrupting the control of the pH of the cell contents. Unlike longer-chain carboxylic acids (the fatty acids), acetic acid does not occur in natural triglycerides. However, the artificial triglyceride triacetin (glycerin triacetate) is a common food additive, and is found in cosmetics and topical medicines.

Acetic acid is produced and excreted by certain bacteria, notably the Acetobacter genus and Clostridium acetobutylicum. These bacteria are found universally in foodstuffs, water, and soil, and acetic acid is produced naturally as fruits and other foods spoil. Acetic acid is also a component of the vaginal lubrication of humans and other primates, where it appears to serve as a mild antibacterial agent.<8>"

Chem is awesome!

[Ava]

5. not as much as i hate SAT prep

i take the SAT in june and i'm stressing like crazy over it

[mainegreen]

6. Chemistry rocks.

I loved it.
I just loved computers more.

[Pierre.Suave]

7. What do you need help with?

Seriously!

[lightningandsnow]

9. How do you convert moles per litre into grams per 100 mL?

Yeah, it's all in metric (I'm Canadian). I'm slightly stumped.

[Pierre.Suave]

11. The easy answer is to divide...

if I were there to show you the method I was taught by my chem professor this would be really easy.

what measurement do you have your moles in? is it grams?

[lightningandsnow]

13. Edited: I think I get it... possibly.

Never mind.

[Pierre.Suave]

15. The molar mass is the weight of one mole of it in grams.

So, if you have a .98 molar solution, unless I am completely forgetting something here, you have 58.8 grams of it.

60grams x .98 = 58.8 grams in a .98 molar solution

so, now what volume are you starting with?


edit: one liter perhaps?

if so, you have 58.8 grams/1 liter = a .98 molar solution.

To get grams/ml you would divide the 58.8 grams/liter by 1000 to get grams/ml of the solution.

or, 0.0588 grams/ml

[lightningandsnow]

17. hmm... that makes sense.

I found a similar way to do it and it seems to be working.

Thank you, though.

[Pierre.Suave]

18. If I were there I would have been able to explain that better

I hope I helped some.

I am not used to explaining this via the intertubez...

:P

[bicentennial_baby]

10. I love Chem...

Took 3 semesters in college, tutored it for 1.5 years after that. It's a beautiful science. :)

[Rabrrrrrr]

12. You are dead to me now.

[khashka]

16. It's cool

I aced it. I didn't have to take the final, but I did. And I fucked it up by intention.

How many moles blah blah blah . I don't know but I have one one my arm, does that help?

Mostly I quoted poetry.


The prof loved me.

Khash.

[quakerboy]

19. Sorry

Going to go against the grain. I love chemistry. Except p-chem. Thats just a whole new level of evil for those of us with 0% ability to visualize.