Search results

also, check out this for a really clear explanation with diagrams and action clips and stuff

In the fuel cell it is: O2(g) + 2H2O(l) + 4e– → 4OH–(aq) check out the .zip notes from the resources (the ones in the general section)

ppm means mg/L convert that to grams. then that to moles via the usual ways.

days are NEVER long enough.... it's just accentuated during exams :p

no, cos say the ratio is 2:1, you just put 2(c1v1) = c2v2

acidic environment? i don't know.. they've all mixed in my head :(

hah! ...........................

as far as i understand, to get the conjugate acid of a base, take away a H+. to get conjugate base of an acid, give it a H+ cos H+ is essentially another name for a proton. and acids are proton donors.

the constant flashing "THE HSC IS UPON YOU!" that comes up on every forum page really isn't helping me to calm down....

why do you think it dissolves your teeth :p

i wish my teacher bothered to spend a little time doing that ;) Xayma, i knew that was your evil plan all along! :D

i'll just drink lots of coffee.... speeds up electic messages passes along the spinal nerve and brain synapses by providing extra ions or something..... who cares, as long as it works

i'm hoping they'll somehow test all the things that i studied and nothing i don't remember in detail/understand completely ;) it's like playing roulette

i saved that yesterday but haven't looked at it yet edit: wow, they're amazing!

yeah.... young brains are like sponges my ass... :rolleyes:

lol, yeah my mum's like "anything you don't know by now, you won't know tomorrow, so just go to sleep" and i'm like "nooooo....don't say that. that destroys the whole basis of my study system!"

oh don't worry. as i've figured out, this is not the place to come for sympathy. filled with people really serious about their study, which is fair enough. i on the other hand, am very screwed. wishing it was on monday, not less than 12 hours away :S

no, the focus is comparing the rate of corrosion, so by seeing the difference in weight between the different nails, for the same amount of time, you can tell which one rusts faster

probably the end is best, since taking out would desrupt the experiment by bringing in other variables

yeah, ours was very qualitative... you know "this is more rusty" kinda thing. but i guess putting that you dried it, then weighed it can't hurt