Chem-Phys Flashcards
TLC can be used to see
if product formed
how add capacitors in series
1/C+1/C2…
wedge is
out of plane
can ethers be reduced if so with what
LiAlH3
velocity of blood from aorta to brain
speeds up
how can carboxylic acid be titrated
dissolve base titrate OH with acid
how do you know percieved light color if get absorbance
perceived color is comp to absorbed
what is a resolving agent
chiral molecule used to make diasteriomers from enantiomers so can be separated based on physical properties
when add half reactions Enot is
0
electrongetive atoms do what on NMR
desheild shift downfield
glyceraldehyde
2 hydroxyl and aldehyde
SN2 what is best LG
primary and bigger if halogen
retro aldol is
break bond btwn alpha and beta carbons
sp CH on IR is ____ sp2 CH is ___ sp3 CH is ___
3600, 3100, 3000
CH3 groups are
electron donating
whats better nucleophile
better base so higher pKa
isoprene unit is
5 carbon branched
higher BP means
more IMF, if same bigger size
Strecker synthesis makes
mix of L and D aa
protonation does what to solubility
makes insoluble in water
esters naming
alkyl from alcohol first
Reduction occurs where
cathode
what is used in gabrial aa synthesis
potasium phtalimide and diethyl bromomalonate
what is never in Ka equation
h2o
how are L aa depicted
H on dash (in)
mass and inertia effect acceleration and curvature how
smaller mass/inertia, bigger a, bigger curve
TLC is used for
purity
UV is for
pi systems
N in beta lactam is ___ hybridized
sp3
anhydride acyl substitution involves
break into carboxylic and ester
adiabatic is
no heat exchange
aldol condensation involves
make CC bond then OH eliminated
sterols dissolve best in
nonpolar
phosphatides are
diglycerides w/ P
if get preferred state it is the ____ product
thermodynamic
thermodynamic expansion equation
delta L= Lalphadelta T
Acids ___ nucelophilicity
reduce
tollens test detects
aldehydes and hydroxyl ketones
do alcohols or ketones have higher BP
alcohol
what is same if in parallel
voltage
how is I related to R
inversely V=IR
in series how get total R
add
ratio of bouyant forces is equal to
ratio of densities
UV ______ NMR ____
excites electrons, radio waves
lower Rf means
more polar
C=O on IR
1690-1650
structural isomers differ in
connectivity not formula
ketones with 1 prime amine yields ____ with 2 prime amine get ___
imine, enamine
protonation makes LG
better
Bent shape
2 bonds 2 LP
when is there no doppler shift
v is zero
Batteries convert ____ energy to ___
chemical to electric
X ray more energy than
infared
same column of periodic table
similar properties
Torque is opposite way of
orbit
more potential as
move away from earth
cytosine has how many carbonyls and thymine?
C 1, T 2
Diverging lens produce
virtual and reduced images
HB in DNA btwn
backbone amides and carbonyl s
the subscript number in molecular formula is
coordination number
Venturi effect
reduce pressure as flow through constricted pipe
GC increases
pi stacking forces
Kinases use phosphate from where
gamma ATP
which is more polar ketone or alcohol
alcohol
radiactive isotypes produce
daughter nuceli
doppler frequency is _____ to speed
inversely
sound can be generated by
expansion and contraction
open pipe means
distance half wavelength
Sound travels slowest where and cant where
gas, vacuum
velocity of photon is independent of
energy
harmonics are proportional to
length of string
empirical formula is
ratio of number of elements
Isotopes have
similar chemical properties dif phsyical
adding inhibitor will
decrease frequency of collisions
Fractional distillation if BP are
less than 25 C apart
electron capture is
proton converted to neutron
at STP how many L per mol
22.4 L/mol
pyruvate kinase makes
ATP
adding solute ____ BP and ____ MP
raises, lowers
gamma rays are ___ and beta minus releases ____
ionizing radiation, electron
Acetone structure and geometry
2 CH3 and carbonyl, sp2 120
electron withdrawing groups _____ carbocation
destabilize
More negative stabilization energy means
more stable
phagosome to lysosome use
mcirotubule
More reactive trend in periodic table
down group
disproportionation reaction is
ox and red occur in same element
smaller radii means ____ bond
shorter + stronger
if molecules have kinetic energy how does that change rate of rxn
faster
law of mass action is
rate of rxn prop to number moles
H2 gas doesn’t form
low EN of both
static force inc until max where equal to
normal force
E=
delta V / d
to become cation do electrons get lost from 3d or 4s first
4s
mechanical advantage =
hypotenuse/ height
liquid to gas is
endothermic
what causes expiration
surface tension and elastic recoil
surface tension is
cohesive forces
how can oh be better lg
protonate
mechanical advantage
output/input
how is light carried long distances with little reduction amplitude
total internal reflection
what happens when sound goes from air to glass
speeds up
speed of sound is greatest where
solid/stiffer more forces
pi bonds compared to sigma are
less stable, higher energy, lower dissociation energy
colligative properties effected by
intermolecular, amount solute not identity
electron affinity
desire gain electron
ratio of height of image and object is related to
distance
higher frequency impacts refraction index how
increase index
electrolytic solutions do what to current
inc conduct
sound doesnt propagate where
vacuum
wider pipe ___ velocity ___ pressure
lower, higher
catabolism requires
oxidizing agents
size order of nucelotides
biggest G T C A smallest
a disulfide bond is a
covalent
protein unfolding is
coorperative
farady/mole ratio
1:1
seasaw geometry
4 bonds 1 LP
how does frequency change before and after passing sound
before greater and after is less then actual
faraday =
C/V
isomer stability determined by
heat of combustion
acetylation means adding
RC=O
what doesnt change through medium
frequency
what doesnt go in K equation
solids
streker synthesis
use aldehyde and ammonia
which is more polar ester or alcohol
alcohol
weight in water is
W=mg
monoprotic gas
3/2
xray determines
3D structure
buoyant force is equal to
Fb= density x volume sub x a
why does a wall block out sound
some reflected
fusion means
melting
What is equivalence point of weak acid and strong base
> 7
decarboxylation needs
beta carbonyl
concave lens info
f=r/2 real and inverted
displaced volume=
density of object/density liquid
circular polarization is
out of phase by 90
heat constant is higher when constant P or V
P
which is more polar carbonyl or alc
OH
something sterically hindered isnt
good nuc
internal temp is proportional to
KE
fluid moves from ___ hydrostatic pressure to ____
high to low
fluid moves from ___ osmotic pressure to ____
low to high
specific activity =
observed / (conc x length)
single slit depends on
wavelength and width
W=
P delta V
what has negative focal length
diverging
power of lens is
reciprocal of focal length
Zeff=
mass number-core electrons
neutrons=
mass number-protons
which has higher overall bond dissociation energy single or triple
triple
reference electrode is
known electric potential and conc
concave lens are
diverging neg focal length
plane-polarized light is a ____ technique
analytical not seperation
What distills first
lower bP
Positive electron potential is
spontaneous
More negative stabilization energy means
more stable
Purine pairs with
pyridine
V relates to Q and C how
V=Q/C
vacuum electron insulator means
no charge
speed is same when
in vacuum
NH on NMR
3600-3200
what travels furthest in TLC
nonpolar (nonpolar mobile)
entropy is measure of
disorder
In exothermic rxn heat is ___ to enviro so H is __
released, neg
Kp=
prod/react
positive H and positive S means spon at ___ temps
high
how does branching affect bp
dec
which has lower BP ester or alc
ester
radius of curvature is ___ focal length
2x
how does I relate to Q and delta T
I=Q/delta T
doppler f is apx equal to
f(source) delta V/ c
stroke volume is equal to
max pressure- min
P in mmhg is equal to
fluid density * height *g
what enzyme to convert pyruvate to acetyl coA
pyruvate dehydrogenase
Pa=
N/m^2
unoccupied d orbital causes
colored
Absorption is highest when _
extraction lowest
gases behave ______ at higher temps
more ideally
how to dissolve acid
use base acid base neutralize help
in doppler speed is ___ to wavelength , as move away wavelength ___
proportional, increases
Energy of ejected electron is equal to
Binding energy- photon absorbtion
E cell=
Ecathode-E anode
if ends in -ite acid name ends in -___
ous
hydration causes
water shell to form
in aldol condensation a ____ catalyst is used for ___ and ___
basic for nucleophilc addition and dehydration
beta decay affects the ____
atomic number
permanent dipole is
unequal sharing eg. c=o
ion dipole bond is
full charge to partial
BH3 selectively reduce ___ and NaBH4 ___
carboxylic, ketones and aldehydes
acids do what in reaction
inc electrophilicity, inc LG stability, dec nucleophilicity
electron donating groups create a ___ effect which makes ___ base
inductive, better
amphiprotic
act acid and base
efficiency
work out/work in
Imide group
2 carbonyl N in middle
impurities occur when
below MP, broad range
TLC inc eluting strength with
inc solvent polarity
phosphoric acid formula
H3PO4
huckels rule
4n+2
Roults law
adding nonvolatile dec vapor pressur e
1 mol= ___ faradys
1
gel electrophoresis uses a ___ cell
electrolytic
peptide bond involves a
nucleophilic subsitution
SN1 solvent
polar protic
mannose structure
hexose, UUD
nucleophilic acyl sub rxn is a
addition/elim on carbonyl compound
axons are ____ charged
neg
C=C on IR
1580-1610
if enzyme is chiral get ____ product
1 product
lens strength S =
1/f
index of refraction =
speed light vacuum/speed in medium
intensity relates to
frequency and number photons
do e- get removed from 4s or 3d
4s
n=
c/v
f shift for doppler is ___ when toward ___ away
+, -
when v is bigger change in f for doppler is
smaller
diverging lens
virtual and reduced
Q=
C * V
acetate
CH3CO2
neg ions flow to the ___ in an electrochem cell bc ____
anode, counter + charge that accumulates
pascal law
P=F/A
Energy of sound wave
prop to A^2
how to get total mag of lens
add up
