Chem-Phys Flashcards
What is the side chain of Lysine?
CH2-CH2-CH2-NH3
What suffix is used for the lesser charge ion?
-ous
How do electrons fill orbitals?
Fill lowest energy first by singly occupying then doubling
where are ribosomes assembled
nucleolus
What is function of rough ER
folding and modifying newly synthesized proteins
What are typically multimeric in cytoplasm
F-actin, keratin, lamin
What moves from centre of cell to edge
kinesins
What moves from edge of cell inward
dyneins
___ at + end and ___ at - end
grow, shrink
Name membrane bound organelles
smooth ER, rough ER< mitochondria
what is function of smooth ER
lipid synthesis, steroid hormone detoxification, detoxification
Which way does the effective nuclear charge increase
across periodic table
Referring to ionization energy as you move across the periodic table it _____ and as you move down it ____
increases and decreases
What is electron affinity
desire to gain an electron
How many valence electrons does Be have
4
what is a network solid
covalent bonds high melting
what is a molecular solid
held by intermolecular forces (HB,LD,DD)
what is viscosity
property of liquids by which they are resistant to flow, or the resistance to deformation by shear stress.
why is colliding elastically not violation of ideal gas law
gas particles can collide, but those collisions are elastic and result in no loss of energy.
is ch4 or naoh more ideal gas and why
ch4 less IMF
what is grahams law what is the relationship it describes
states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight.
what is one main difference between thermodynamic and kinetic properties of reaction
thermodynamic equilibrium/spontaneity
kinetics activation energy and speed
at high temperatures which path is favored and why
thermodynamic as it stabilizes products and there is sufficient energy to overcome activation
What is the effect of reducing pressure
shifts to side with more moles
What changes Keq
Temperature
A molecule that releases the least energy when hydronated will exhibit ___
complete conjugation and resonance
how is trans shown in chair diagram
one up one down
How can two anomers be interconverted?
mutarotation
Is an alcohol or water more acidic
water
which tajkes priority in naming aldehyde or alcohol
aldehyde
what is a compound that donates a proton
bronsted acid
if there is a low pKa is it weak or strong base
weak
a cyclic carboxylic acid has the suffix ___
carboxylic acid
Which has higher boiling point metahnol or water
water
What is osmotic pressure
the amount of pressure required to prevent the flow of solvent through a semipermeable membrane
An endothermic reaction will shift to recatants or products
products
If tehre are 6 moles of gas and the partial pressure is 3 moles is 300 what is the total pressure
900
what is a molecule
molecule is arrangement of 2 or more atoms that together have own properties
If there is a graph showing phase changes what area would display largest specific heat capacity
most upward slope
which curve is steeper isothermic or adiabolic
adiabatic
what is underlying force of tension
electromagnetic
if contact of force in motion it is kinetic or static
kinetic
what does the tiny amount of weak acid added to buffer do
allows identify when equivalence point reached
what would be equivalence point of strong acid and weak base
below 7
how does the magnitude of charge relate for proton and electron
same
what do we know if delta V is negative
moved from high to low electron potential
If a magnet were to rotate it would have to have a ____ force
non zero rotational
What always has a uniform spin
ferromagnetic
Does resistivity change with shape
No property of material
What is the spin on ferromagnetic
uniform
What is the Keq for non spon reaction
K<1
What are key identifiers of SN2
a polar aprotic solvent and a primary alkyl halide with a good leaving group
which is more stable a tertiary carboanion or primary
primary
In subsitution what usually attacks what site
nucleophilic attack on electrophilic site
What type of reaction is hemiacetal to acetal formation
nucleophilic sub
what favors kinetic enolate product
strong statically hindered base
what is product of Michael addition
1,5 dicarbonyl structure.
what are 2 equations invovlign planks constant
λ = h/mv.
E=hf
how do waves speed compare in vacuum
all same
is the frequency/wavelength relationship true in all conditions
yes
what comes after I on periodic table
xe
what does adding solute do to colligative properties
raises BP lowers MP
if a cell is hypertonic does water flow in or out
out
in distillation what is a property of remainign liquid
higher BP
what is structure of acetone
central carbon double bonded to o and 2 ch3 groups
what is equation for power
P=v^2/R
where is the carbonyl stretch on IR spectrum
1700-1750
as the electron transport chain goes on reduction potentials ____
increase
if delat g is negative the keq will be
greater than 1
what does the angle of incidence equal
reflection
for a reaction thatr is spon at low temps whats true abotu delta h and delta s
both negative
what is parallel capacitor
when voltage applied charges accumulate
what do microtubules play a role in
phagosome transport, mitosis, meiosis
what is spring constant and what units
K in N/m
what angle is best for mechanical advantage
90
how does ramp incline change in terms of amount of work
it doesn’t
how does ioniaztion increase
across and up
which has higher electrical potential anode or cathode
anode
at higher temps what happens to air speed
faster
if mountain pressure is 660 what is the pressure it would boil at
660
what is bond btwen C and N in cyanide
triple
which has highest bp water methanol or acetone
acetone
for Agcl what is relation btwen ksp and molar soulbitlity
ksp= molarsoul^2
when lookign at colligitve properties always check
particles after dissociation
how can you syntehsize an anhydride
with 2 carboxylic acids
are alkoxides good or bad leaving groups
bad
where is alpha hydrogen
on carbon next to the carbonyl carbon
what is the product and intermediate of reductive amination
product amine intermediate imine
if mobile phase of TLC is nonpolar the compound with highest Rf would be
non polar
what forms when cyanide and aldehyde react
cyanohydrin
what happens to stereochem in SN2
inverts
what can be used to convert carboxylic acid to acyl halide
PCl5
how can we get NMR signal
n+1 where n is # of H on adjacent carbon
in recrystaliization we want a solvent that would result in
molecule not soluble at cold but soluble at warm temps
what is product of rxn between amine and ester
amide
SI unit p
10 ^-12
if a time vs lnconc graph is linear what reaction order is it
first
what happens to enegry of spring as approaches equilibrium
dec potential gain kinetic
how does frequency change across mediums
its same
1 atm =
760 mmhg= 10^5 pa
why signomdal shape of o2 binding
hematropic regulation
at higher temp gasses become
more ideal
a pka for indicator should be
greater than final pH
imine
R=NR
what is worked measured in
J
what is planks contsnat
6.62 x10^-34js
something accelerating has to have
nonzero fnet
can pH be negative and if so what cases
yes if H is over 1M
what is pa equal to
N/m^2
if someone is on operating table one msut clamp artery because pressurized blood converts to what
kinetic energy
flow rate =
area x velocity
verturi effect says lowest pressure is at ____ part
narrow
dynamic pressure is
difference between stagnation and static pressure
colligitive properties
melting and vapour pressure depression, BP elevation
___ drives protonation
H+ presence aka low PH
what is soemthign with multipel ox states and bright colors
transition metal
if 3 eleements have same number of electrons how would you determine which has smallest radius
most protons
hwo do u find change in temp
delta t = kb m I
low first ionization and high second points us to
alkali metal or oxygen containing
acetal hydrolysis yield
2 alcohol and aldehyde
which is better leaving group Cl or I
I
To minimize side reactions pick condition with
bad LG
hydrophilic sides result in a
convex
P=
F/A
adding heat to endothermic shifts to
products
Henry hassleback equation uses log of
A-/HA
to find a more acidic proton look at ____ across periodic table and _____ down
inc EN inc size
why dont amide and carboyxlic acid form imine
COOH is too acidic
what solvent do u want for SN2
polar aprotic
inc pKa makes more or less acidic
less
are tosylates stable
yes
product of amide hydrolysis
carboxylic acid and amine
N/C is equal to
V/m
frequency =
speed of light/wavelength
smaller period means ____ frequency
larger
perchloric acid formula
HClO4
gas to solid
deposition
mroe neg reduction potntial more liekly to
reduce
rechargable batteries act as
galvanic cell
amphoteric
act as base and acid
what is avogadros number
6.06 x 10^23
red litmus paper turns blue when
with base
what will experience force through perpendicular magnetic field
any charged particle
to accelerate need
non zero net force
snells law
n1sintheta1= n2 sintheta2
gamma decay emits
high energy photon
as unpolarized light goes through polarizer the wavelength
gets cut in half
for ideal fluids how does the flow rate compare at small vs big parts
same continuity equation
what chloride is not soluble
silver chloride
ideal gas law assumptions
particles occupy negligible mass and no interactions
weak acid or base is best buffer where
half equivalence
diamagnetic is
only paired electrons
if have moderatly weak acid conj base is
weak
which has low bp carboxylic or amide
carboxylic
chalres law deals with
temp and volume
