Chem-Phys Flashcards
1
Q
TLC can be used to see
A
if product formed
2
Q
how add capacitors in series
A
1/C+1/C2…
3
Q
wedge is
A
out of plane
4
Q
can ethers be reduced if so with what
A
LiAlH3
5
Q
velocity of blood from aorta to brain
A
speeds up
6
Q
how can carboxylic acid be titrated
A
dissolve base titrate OH with acid
7
Q
how do you know percieved light color if get absorbance
A
perceived color is comp to absorbed
8
Q
what is a resolving agent
A
chiral molecule used to make diasteriomers from enantiomers so can be separated based on physical properties
9
Q
when add half reactions Enot is
A
0
10
Q
electrongetive atoms do what on NMR
A
desheild shift downfield
11
Q
glyceraldehyde
A
2 hydroxyl and aldehyde
12
Q
SN2 what is best LG
A
primary and bigger if halogen
13
Q
retro aldol is
A
break bond btwn alpha and beta carbons
14
Q
sp CH on IR is ____ sp2 CH is ___ sp3 CH is ___
A
3600, 3100, 3000
15
Q
CH3 groups are
A
electron donating
16
Q
whats better nucleophile
A
better base so higher pKa
17
Q
isoprene unit is
A
5 carbon branched
18
Q
higher BP means
A
more IMF, if same bigger size
19
Q
Strecker synthesis makes
A
mix of L and D aa
20
Q
protonation does what to solubility
A
makes insoluble in water
21
Q
esters naming
A
alkyl from alcohol first
22
Q
Reduction occurs where
A
cathode
23
Q
what is used in gabrial aa synthesis
A
potasium phtalimide and diethyl bromomalonate
24
Q
what is never in Ka equation
A
h2o
25
how are L aa depicted
H on dash (in)
26
mass and inertia effect acceleration and curvature how
smaller mass/inertia, bigger a, bigger curve
27
TLC is used for
purity
28
UV is for
pi systems
29
N in beta lactam is ___ hybridized
sp3
30
anhydride acyl substitution involves
break into carboxylic and ester
31
adiabatic is
no heat exchange
32
aldol condensation involves
make CC bond then OH eliminated
33
sterols dissolve best in
nonpolar
34
phosphatides are
diglycerides w/ P
35
if get preferred state it is the ____ product
thermodynamic
36
thermodynamic expansion equation
delta L= Lalphadelta T
37
Acids ___ nucelophilicity
reduce
38
tollens test detects
aldehydes and hydroxyl ketones
39
do alcohols or ketones have higher BP
alcohol
40
what is same if in parallel
voltage
41
how is I related to R
inversely V=IR
42
in series how get total R
add
43
ratio of bouyant forces is equal to
ratio of densities
44
UV ______ NMR ____
excites electrons, radio waves
45
lower Rf means
more polar
46
C=O on IR
1690-1650
47
structural isomers differ in
connectivity not formula
48
ketones with 1 prime amine yields ____ with 2 prime amine get ___
imine, enamine
49
protonation makes LG
better
50
Bent shape
2 bonds 2 LP
51
when is there no doppler shift
v is zero
52
Batteries convert ____ energy to ___
chemical to electric
53
X ray more energy than
infared
54
same column of periodic table
similar properties
55
Torque is opposite way of
orbit
56
more potential as
move away from earth
57
cytosine has how many carbonyls and thymine?
C 1, T 2
58
Diverging lens produce
virtual and reduced images
59
HB in DNA btwn
backbone amides and carbonyl s
60
the subscript number in molecular formula is
coordination number
61
Venturi effect
reduce pressure as flow through constricted pipe
62
GC increases
pi stacking forces
63
Kinases use phosphate from where
gamma ATP
64
which is more polar ketone or alcohol
alcohol
65
radiactive isotypes produce
daughter nuceli
66
doppler frequency is _____ to speed
inversely
67
sound can be generated by
expansion and contraction
68
open pipe means
distance half wavelength
69
Sound travels slowest where and cant where
gas, vacuum
70
velocity of photon is independent of
energy
71
harmonics are proportional to
length of string
72
empirical formula is
ratio of number of elements
73
Isotopes have
similar chemical properties dif phsyical
74
adding inhibitor will
decrease frequency of collisions
75
Fractional distillation if BP are
less than 25 C apart
76
electron capture is
proton converted to neutron
77
at STP how many L per mol
22.4 L/mol
78
pyruvate kinase makes
ATP
79
adding solute ____ BP and ____ MP
raises, lowers
80
gamma rays are ___ and beta minus releases ____
ionizing radiation, electron
81
Acetone structure and geometry
2 CH3 and carbonyl, sp2 120
82
electron withdrawing groups _____ carbocation
destabilize
83
More negative stabilization energy means
more stable
84
phagosome to lysosome use
mcirotubule
85
More reactive trend in periodic table
down group
86
disproportionation reaction is
ox and red occur in same element
87
smaller radii means ____ bond
shorter + stronger
88
if molecules have kinetic energy how does that change rate of rxn
faster
89
law of mass action is
rate of rxn prop to number moles
90
H2 gas doesn't form
low EN of both
91
static force inc until max where equal to
normal force
92
E=
delta V / d
93
to become cation do electrons get lost from 3d or 4s first
4s
94
mechanical advantage =
hypotenuse/ height
95
liquid to gas is
endothermic
96
what causes expiration
surface tension and elastic recoil
97
surface tension is
cohesive forces
98
how can oh be better lg
protonate
99
mechanical advantage
output/input
100
how is light carried long distances with little reduction amplitude
total internal reflection
101
what happens when sound goes from air to glass
speeds up
102
speed of sound is greatest where
solid/stiffer more forces
103
pi bonds compared to sigma are
less stable, higher energy, lower dissociation energy
104
colligative properties effected by
intermolecular, amount solute not identity
105
electron affinity
desire gain electron
106
ratio of height of image and object is related to
distance
107
higher frequency impacts refraction index how
increase index
108
electrolytic solutions do what to current
inc conduct
109
sound doesnt propagate where
vacuum
110
wider pipe ___ velocity ___ pressure
lower, higher
111
catabolism requires
oxidizing agents
112
size order of nucelotides
biggest G T C A smallest
113
a disulfide bond is a
covalent
114
protein unfolding is
coorperative
115
farady/mole ratio
1:1
116
seasaw geometry
4 bonds 1 LP
117
how does frequency change before and after passing sound
before greater and after is less then actual
118
faraday =
C/V
119
isomer stability determined by
heat of combustion
120
acetylation means adding
RC=O
121
what doesnt change through medium
frequency
122
what doesnt go in K equation
solids
123
streker synthesis
use aldehyde and ammonia
124
which is more polar ester or alcohol
alcohol
125
weight in water is
W=mg
126
monoprotic gas
3/2
127
xray determines
3D structure
128
buoyant force is equal to
Fb= density x volume sub x a
129
why does a wall block out sound
some reflected
130
fusion means
melting
131
What is equivalence point of weak acid and strong base
>7
132
decarboxylation needs
beta carbonyl
133
concave lens info
f=r/2 real and inverted
134
displaced volume=
density of object/density liquid
135
circular polarization is
out of phase by 90
136
heat constant is higher when constant P or V
P
137
which is more polar carbonyl or alc
OH
138
something sterically hindered isnt
good nuc
139
internal temp is proportional to
KE
140
fluid moves from ___ hydrostatic pressure to ____
high to low
141
fluid moves from ___ osmotic pressure to ____
low to high
142
specific activity =
observed / (conc x length)
143
single slit depends on
wavelength and width
144
W=
P delta V
145
what has negative focal length
diverging
146
power of lens is
reciprocal of focal length
147
Zeff=
mass number-core electrons
148
neutrons=
mass number-protons
149
which has higher overall bond dissociation energy single or triple
triple
150
reference electrode is
known electric potential and conc
151
concave lens are
diverging neg focal length
152
plane-polarized light is a ____ technique
analytical not seperation
153
What distills first
lower bP
154
Positive electron potential is
spontaneous
155
More negative stabilization energy means
more stable
156
Purine pairs with
pyridine
157
V relates to Q and C how
V=Q/C
158
vacuum electron insulator means
no charge
159
speed is same when
in vacuum
160
NH on NMR
3600-3200
161
what travels furthest in TLC
nonpolar (nonpolar mobile)
162
entropy is measure of
disorder
163
In exothermic rxn heat is ___ to enviro so H is __
released, neg
164
Kp=
prod/react
165
positive H and positive S means spon at ___ temps
high
166
how does branching affect bp
dec
167
which has lower BP ester or alc
ester
168
radius of curvature is ___ focal length
2x
169
how does I relate to Q and delta T
I=Q/delta T
170
doppler f is apx equal to
f(source) delta V/ c
171
stroke volume is equal to
max pressure- min
172
P in mmhg is equal to
fluid density * height *g
173
what enzyme to convert pyruvate to acetyl coA
pyruvate dehydrogenase
174
Pa=
N/m^2
175
unoccupied d orbital causes
colored
176
Absorption is highest when _
extraction lowest
177
gases behave ______ at higher temps
more ideally
178
how to dissolve acid
use base acid base neutralize help
179
in doppler speed is ___ to wavelength , as move away wavelength ___
proportional, increases
180
Energy of ejected electron is equal to
Binding energy- photon absorbtion
181
E cell=
Ecathode-E anode
182
if ends in -ite acid name ends in -___
ous
183
hydration causes
water shell to form
184
in aldol condensation a ____ catalyst is used for ___ and ___
basic for nucleophilc addition and dehydration
185
beta decay affects the ____
atomic number
186
permanent dipole is
unequal sharing eg. c=o
187
ion dipole bond is
full charge to partial
188
BH3 selectively reduce ___ and NaBH4 ___
carboxylic, ketones and aldehydes
189
acids do what in reaction
inc electrophilicity, inc LG stability, dec nucleophilicity
190
electron donating groups create a ___ effect which makes ___ base
inductive, better
191
amphiprotic
act acid and base
192
efficiency
work out/work in
193
Imide group
2 carbonyl N in middle
194
impurities occur when
below MP, broad range
195
TLC inc eluting strength with
inc solvent polarity
196
phosphoric acid formula
H3PO4
197
huckels rule
4n+2
198
Roults law
adding nonvolatile dec vapor pressur e
199
1 mol= ___ faradys
1
200
gel electrophoresis uses a ___ cell
electrolytic
201
peptide bond involves a
nucleophilic subsitution
202
SN1 solvent
polar protic
203
mannose structure
hexose, UUD
204
nucleophilic acyl sub rxn is a
addition/elim on carbonyl compound
205
axons are ____ charged
neg
206
C=C on IR
1580-1610
207
if enzyme is chiral get ____ product
1 product
208
lens strength S =
1/f
209
index of refraction =
speed light vacuum/speed in medium
210
intensity relates to
frequency and number photons
211
do e- get removed from 4s or 3d
4s
212
n=
c/v
213
f shift for doppler is ___ when toward ___ away
+, -
214
when v is bigger change in f for doppler is
smaller
215
diverging lens
virtual and reduced
216
Q=
C * V
217
acetate
CH3CO2
218
neg ions flow to the ___ in an electrochem cell bc ____
anode, counter + charge that accumulates
219
pascal law
P=F/A
220
Energy of sound wave
prop to A^2
221
how to get total mag of lens
add up
