Exam 1 Flashcards
1
Q
giga symbol
A
G
2
Q
giga factor
A
10^9
3
Q
mega symbol
A
M
4
Q
mega factor
A
10^6
5
Q
kilo symbol
A
k
6
Q
kilo factor
A
10^3
7
Q
hecto symbol
A
h
8
Q
hecto factor
A
10^2
9
Q
deka symbol
A
da
10
Q
deka factor
A
10^1
11
Q
deci symbol
A
d
12
Q
deci factor
A
10^-1
13
Q
centi symbol
A
c
14
Q
centi factor
A
10^-2
15
Q
milli symbol
A
m
16
Q
milli factor
A
10^-3
17
Q
micro symbol
A
u
18
Q
micro factor
A
10^-6
19
Q
nano symbol
A
n
20
Q
nano factor
A
10^-9
21
Q
pico symbol
A
p
22
Q
pico factor
A
10^-12
23
Q
femto symbol
A
f
24
Q
femto factor
A
10^-15
25
atto symbol
a
26
atto factor
10^-18
27
zepto symbol
z
28
zepto factor
10^-21
29
1 inch =
2.54 cm
30
1 cal =
4.184 J
31
delta H = (+)
heat is absorbed, endothermic
32
delta H = (-)
heat is liberated, exothermic
33
delta S = (+)
products more disordered than reactants
34
delta S = (-)
products less disordered than reactants
35
free energy =
delta G = delta H - T(delta S)
36
free energy and equilibrium =
K = e^-(delta G knot)/RT
37
R =
8.314 J/molK
38
If a reaction is at equilibrium and products are added (or reactants are removed)
the reaction goes to the left (reactant favored)
39
If a reaction at equilibrium and reactants are added (or products are removed)
the reaction goes to the right (product favored)
40
delta g
change in free energy
41
delta h
change in enthalpy
42
delta s
change in entropy
43
length SI unit
meter (m)
44
mass SI unit
kilogram (kg)
45
time SI unit
second (s)
46
electric current SI unit
ampere (A)
47
temperature SI unit
kelvin (K)
48
luminous intensity SI unit
candela (cd)
49
amount of substance SI unit
mole (mol)
50
plane angle SI unit
radian (rad)
51
solid angle SI unit
steradian (sr)
52
frequency SI unit
hertz (Hz)
53
force SI unit
newton (N)
54
pressure SI unit
pascal (Pa)
55
Energy, work, quantity of heat SI unit
joule (J)
56
Power, radiant flux SI unit
watt (W)
57
Quantity of electricity, electric charge SI unit
coulomb (C)
58
Electric potential, potential difference, electromotive force SI unit
volt (V)
59
Electric resistance SI unit
ohm (omega)
60
electric capacitance SI unit
farad (F)
61
ppm
mass of substance/mass of sample x 10^6
62
ppb
mass of substance/mass of sample x 10^9
63
dilution formula
M1V1=M2V2
64
Relative uncertainty
absolute uncertainty/magnitude of measurement
65
percent relative uncertainty
100 x relative uncertainty
66
standard deviation
s = sqrt((sum(xi-xbar)^2)/(n-1))
67
delta G = +
reaction is unfavorable
68
delta G = -
reaction is favorable
69
equilibrium constant
K=[C]^c[D]^d/[A]^a[B]^b
70
Gibbs Free Energy of Reaction
delta G knot = -RTlnK
71
large K
product favored
72
small K
reactant favored
73
Gibb's Test
outlier-bar/standard deviation
74
Q-test
for outliers
75
Qexp =
Gap/Range
76
Qexp>Qtable
reject the data with the indicated confidence level
77
Qexp
Retain the data point
78
79
|xbar1-xbar2|
Accept the null hypothesis
80
Confidence interval equation
u = xbar +- ts/sqrt(N)
81
+- 1 o =
68.3%
82
+- 2 o =
95.5%
83
+- 3 o =
99.7%
84
addition and subtraction propagation of error
sy = sqrt((sa)^2+(sb)^2)
85
multiplication and division propagation of error
sy/y = sqrt((są/a)^2 + (sb/b)^2
86
molarity (M)
moles of solute/liters of solution
87
molality (m)
moles of solute/kg of solvent
88
spooled =
sqrt((sum(xi-xbar)^2 + sum(xi-xbar)^2)/N1+N2-2)
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