HELLO O.o =p :D ;p :) XD >,< -_- :S ;(
day was quite fine. slightly stressful due to the fact that i had physics supplementary aft sch and i stayed behind in the library until 4.30 to study. yeah, you might say i have got no life but i really dont care hahahaha. exams are round the corner. lemme think. 33 days left. what a nice number. im getting very crappy as im suffering frm post exam stress. so if any of you do talk to me before the may papers, you might notice a lalala significant change in me. well whatever. im not like that all the time you know. when it comes to serious stuff i get very down to earth and act as if it is a life and death situation. yes life and death.
well as im tying this right now, im multi taksing at the same time and recalling the formulas in chemical calculations testing one two threeee.
MOLE . concept
-mole to mass(ionic/molecular compounds)--->Mole x Atomic mass/Molecular mass.
-mole to mass(atomic)--->Molexdm^3(cube)
-mole to vol of gas--->x 24
-mole to particle--->x6/10^23
yayayayayayayayayayayayayayayayayayayayayayayay.
[empirical formula]
firstly divide the mass of each element by its respective relative atomic masses to obtain mole of each element, divide the mole by the smaller number if possible, in some cases not. from there work out the molar ratio x1x2x3x4 so on and so forth.
yayayayayayayayayayayayayayayayayayayayayayayay.
!molecular formula!
first divide the relative molecualr mass of the chem compound by the relative empirical formula mass then times the result by the whole chem compound.
yayayayayayayayayayayayayayayayayayayayayayay.
*% yield*
actual yield over theoretical yield x100%
yayayayayayayayayayayayayayayayayayayayayayayay.
*percentage purity*
actual amount of sucstance over theoretical amount of substance
yayayayayayayayayayayayayayayayayayayayayayayay.
theres alot more others but i think its all applied into the ones stated haha.
I REMEMBERED THEM YAYNESS >.<>
http://web.tickle.com/dog/compare.jsp
im a bernese mountain dog btw :D
BYEBYE. xp
33 days.
i wont be blogging so often : (
BPKY mister or maestro?;
11:23 PM
