Unformatted text preview: ln Q = DG + 2.303 RT log Q
q = mcDT
DH
Cp =
DT
ln A u = velocity
n = principal quantum number
m = mass energy
frequency
wavelength
momentum Speed of light, c = 3.0 ¥ 108 m s 1 EQUILIBRIUM
[H + ] [A − ]
Ka =
[HA ]
Kb = =
=
=
= 0 Faraday's constant, =  kt = 96,500 coulombs per mole
of electrons Gas constant, R = 8.31 J mol 1 K 1 1
= kt
A0 = 0.0821 L atm mol 1 K 1
= 8.31 volt coulomb mol 1 K 1  Ea 1
ln k =
+ ln A
RT ej GO ON TO THE NEXT PAGE.
4 GASES, LIQUIDS, AND SOLUTIONS P
V
T
n
D
m
u PA = Ptotal ¥ X A , where X A = moles A
total moles Ptotal = PA + PB + PC + ...
m
n=
M
K = C + 273
PV1 P2V2
1
=
T1
T2
m
D=
V
3kT
3 RT
=
urms =
M
m
1
KE per molecule = mu 2
2
3
KE per mole = RT
2
M2
r1
=
M1
r2
molarity, M = moles solute per liter solution
molality = moles solute per kilogram solvent
DT f = iK f ¥ molality
DTb = iK b ¥ molality
p = iMRT
A = abc pressure
volume
temperature
number of moles
density
mass
velocity =
=
=
=
=
=
= rootmeansquare speed
kinetic energy
rate of effusion
molar mass
osmotic pressure
van't Hoff factor
molal freezingpoint depression constant Kb
A
a
b
c
Q
I
q
t Ê
n2 a ˆ
Á P + 2 ˜ (V  nb ) = nRT
Ë
V¯ =
=
=
=
=
=
= urms
KE
r
M
p
i
Kf PV = nRT =
=
=
=
=
=
=
=
= molal boilingpoint elevation constant
absorbance
molar absorptivity
path length
concentration
reaction quotient
current (amperes)
charge (coulombs)
time (seconds) E = standard reduction potential
K = equilibrium constant
Gas constant, R = 8.31 J mol 1 K 1 OXIDATIONREDUCTION; ELECTROCHEMISTRY = 0.0821 L atm mol 1 K 1 Q= [ C ] c [ D] d
[ A ] a [ B] b = 8.31 volt coulomb mol 1 K 1 , where a A + b B Æ c C + d D Boltzmann' s constant, k = 1.38 ¥ 10 23 J K 1
K f for H 2 O = 1.86 K kg mol 1 q
I=
t
E cell = E cell log K = Kb for H 2 O = 0.512 K kg mol 1 RT
0.0592
ln Q = E cell log Q @ 25 C
n
n 1 atm = 760 mm Hg
= 760 torr
STP = 0.000 C and 1.000 atm nE
0.0592 Faraday' s constant, = 96,500 coulombs per mole
of electrons GO ON TO THE NEXT PAGE.
5 2006 AP® CHEMISTRY FREERESPONSE QUESTIONS
CHEMISTRY
Section II
(Total time—90 minutes)
Part A
Time— 40 minutes
YOU MAY USE YOUR CALCULATOR FOR PART...
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This note was uploaded on 10/01/2009 for the course OC 9876 taught by Professor Dq during the Spring '09 term at UC Merced.
 Spring '09
 Dq

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