hey! so i think this is a great thread, and i meant to add to it, but i got busy studying
now that my fate is in the hands of the aamc markers, i thought i'd share some of my mnemonics. some are very corny, adn might not work for you, but enjoy the ones that do!
for turning triple bond into anti double bond you use Na and NH3, which both start with the letter 'N' like the word NO... and when i think of 'NO' i think of anti (compared to lindlar catalyst for syn)
this one isnt a mnemonic, but when i think of ozonolysis, i think of a katate chop! lol cause thats essentially what it does
and its fun to laugh a little on the MCAT.
ortho, meta, para: ontop of the world, middle class, or in poverty.
LA and DC (as in the american cities) to remember that
Amino acids are
L in animals, and
Carbohydrates are
D in animals
k, for H-NMR, for upfield, i think 'up high' and there is a
high nummber of electrons (aka. not much desheilding) and for down field i think 'down low' and there is a
low number of electrons, so ALOT of desheilding!
order of electronegativity: FON Cl BrISH
for SN2 and E2 i just think opposites, llike because it is a 2, it only has
1 step, and for SN1 and E1 I just think opposites again, cause they have
2 steps.
in terms of stress and strain, to find delta L (stetch and compress) and X (shearing) remember
FLEA and
FLAG respectively
Delta L= FL/EA X=FL/AG
stress is like press(ure) and strain is chainge
osmotic pressure= MiRT (it sounds like DIRT... and thats how i remember...)
for BP elevation/ MP depression, just remember
lil kim and
hotter than hot/ colder than cold
Delta T=+/- kim
(k=constant, i is number of ions something dissociates into and m is molality)
for solubility rules, to remember the 3 that are always INSOLUBLE, i say "
a giant peanut butter hug" Ag, Pb, Hg
for gauge pressue (this one is corny...) i think about 'gauging' how bad a movie is, and it gets the rating "pg duh!" and the equation for gauge pressure is
Gauge pressure = p g D
(where p is "row" lol or whatever the greek letter for density is..)
it gets cornier.... for alchimedes principle/ bouyant FORCE, i think "pg due to subjective violence"... (cause forcefullness can be violent....)
bouyant force= pgVsubmerged
(v= volume submerged)
current:
I 'amp' a cutie (ie. i AM a cutie)... maybe only for the girls teehee
I=Q/T, units= amps
for circuits, Power= IV, i just think of an actual IV, like in the hospital...
period of a wave, "
tony
ma
ke
2 pi's"
T=2pi sqrt(m/k)
period of a pendulim "
tony has
2 lar
ge
pi's"
T=2pi sqrt(l/g)
ok, amino acids! i struggled with these, so this is what i came up with that works for me:
hydrophobic aromatic: I tryed to trip phenol
tyr, trp, phe
hydrophobic alkyl: I glyded a la isl.(the short for for island) on valentines day in the leu (cause I live in waterLOO).
gly, ala, ile, val, leu
Hydrophilic, acidic: i jsut remember the two that have the word acidic in them
glu, asp (both have pka 4, which i remember by saying FTW, aka 4 the win lol)
hydrophilic, basic: his larg beard is basic
his, lys, arg (pka values are in ascending order, 6.5, 10, 12)
hydrophilic, uncharged: STAG, and for some reason i also remember there yah go ser
Ser, thr, asp, gln
and then the weird ones: pro bonds with itself and cant make alpha helixs, met is always the start codon, cys involved in disulfide bonds
ok, to remember if salts become acidic or basic in solution, basically if a anion is conj base of strong acid, no reaction, if the anion is conj base of weak acid, it acts basic, for the cation part, the only ones that are acidic are :
Cr, Cu, Zn, Be, Al, Fe, NH4+ "dont
Cry,
CuZevery little thing is gunna
Be Alright... in fact, it'll be
FeN (fun, where the N is for NH4+)
for DNA, its READ 3'-5' (just like how we read) but when it is synthesized/ built, it is build 5'-3' (just like we would build a pyramid... largest to smallest)
gram Positive is Purple
im sure i have more, but thats what ive got for now. hope that at least helps someone! good luck everyone!
Saggy TT's = 
