chemistry

[sprinklethief]

74 people have dropped the class already. i guess our teacher is a research chemist and has to teach this class to keep his job with the university. he's not happy about it. he's trying to get people to fail out or just plain drop to underline how unhappy he is about teaching this class.

also, conversion factors? you can suck the shit out of my ass. this is why i have a calculator. why can't i just use a goddamn calculator?

i actually purchased a "complete idiot's guide to chemistry" to get a better grasp on conversion factors and they didn't go far enough into it. jerks.

and i got yelled at in creative writing for not making any sense. see if i ever share writing from a schizo episode again. here i thought the "creative" part was gonna make this class different. maybe i'll just say fuck a lot because it's college and i can. i very rarely share my writing, and i finally do to 24 total strangers and "this makes no sense, bleaaaah!" MAYBE THAT WAS THE POINT YOU IDIOT! READ THE WORDS! ::bashes head into... i don't know, something that doesn't make sense:: some douche totally rips off bob dylan and gets girls swooning and i'm "disturbing" and "scary" whatever.

rargh.

Comments

[indy-skies.livejournal.com]

that happened to me. i wrote a sotry for a creative writing class and the teacher "didn't get it" - aka - it didn't make sense. i didn't get yelled at for it though, i just got a crappy grade.

[greyyguy.livejournal.com]

Yeah- the whole peer thing sucks in writing classes. There is always someone trying to show how "smart" they are and tear apart whatever they can to show that they know better. Ignore the fucks.

I'd offer help on the chemistry but I haven't taken chem in 15 years. I recognise the term conversion factors but would have to re-read the book to remember what they are. Good luck!

[flurbins.livejournal.com]

Stoichiometry rox my box!

[paroxysm-cycle.livejournal.com]

so when you have a mi/h and you need to convert to km/s, how do you set that up? like, i know how to do the basic mi to km but how do you factor in the h to s? we aren't allowed to just use our damn calculator to do the conversion, we have to show our work. basic conversions are easy enough but once you throw in other factors i get all durrr. once i get past that chemistry is not so bad for me. i'm more excited for o-chem tho.

[flurbins.livejournal.com]

given 1 mile = 1.609344k, then...
55 mph to k/s would be set up like this.

55 miles/1 hour x 1 hour/60 minutes x 1 minute/60 seconds x 1.609344k/1 mile.


Remember cancelling out factors, like 3/2 x 4/9 would be 1/1 x 2/3?
Same concept, but you're doing it with units. So since there's no miles or hours in the final answer, you need to have units to cancel out. Since you have miles on top (55), you need kilomoters over miles (1.609344k/1 MILE). Then you can cancel out the word (unit) miles, since it appears exactly once on top, and once on bottom. Same thing with hour.

[flurbins.livejournal.com]

You are given the miles to kilometers conversion, right?

Oh yeah, don't forget, just because it says miles per hour, doesn't mean you can't wright it like 1 hour/55 miles. It doesn't matter which is on top or bottom really, so do what you need to so you can cancel out the units.

[flurbins.livejournal.com]

One more thing I thought of that may help. You can multiply anything you want by the number 1 as much as you damn well please. That's why I put in 1 hour/60 minutes (equals 1), and also 1 minute/60 seconds (also equals 1). Multiplying an equation by 1 doesn't change shit, so that's where all your intermediate conversions come from.

[woodfaery.livejournal.com]

I wrote a story for one of my honors classes in high school and had to read it outloud. most people didn't get it and I had to explain it. so I feel you on that.