Seventh Edition
Skoog
Holler
Crouch
Principles
Instrumental
Analysis
P
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Skoog
Holler
Crouch
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Seventh
Edition
Seventh Edition
Principles
Instrumental
Analysis
Skoog
Holler
Crouch
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
INterNAtIoNAl AtoMIc MASSeS*
Name
Symbol
Atomic
Number
Atomic Mass
Name
Symbol
Atomic
Number
Actinium
Aluminium
Americium
Antimony
Argon
Arsenic
Astatine
Barium
Berkelium
Beryllium
Bismuth
Bohrium
Boron
Bromine
Cadmium
Calcium
Californium
Carbon
Cerium
Cesium
Chlorine
Chromium
Cobalt
Copernicum
Copper
Curium
Darmstadtium
Dubnium
Dysprosium
Einsteinium
Erbium
Europium
Fermium
Flerovium
Fluorine
Francium
Gadolinium
Gallium
Germanium
Gold
Hafnium
Hassium
Helium
Holmium
Hydrogen
Indium
Iodine
Iridium
Iron
Krypton
Lanthanum
Lawrencium
Lead
Lithium
Livermorium
Lutetium
Magnesium
Manganese
Meitnerium
Ac
Al
Am
Sb
Ar
As
At
Ba
Bk
Be
Bi
Bh
B
Br
Cd
Ca
Cf
C
Ce
Cs
Cl
Cr
Co
Cn
Cu
Cm
Ds
Db
Dy
Es
Er
Eu
Fm
Fl
F
Fr
Gd
Ga
Ge
Au
Hf
Hs
He
Ho
H
In
I
Ir
Fe
Kr
La
Lr
Pb
Li
Lv
Lu
Mg
Mn
Mt
89
13
95
51
18
33
85
56
97
4
83
107
5
35
48
20
98
6
58
55
17
24
27
112
29
96
110
105
66
99
68
63
100
114
9
87
64
31
32
79
72
108
2
67
1
49
53
77
26
36
57
103
82
3
116
71
12
25
109
[227]
26.9815385(7)
[243]
121.760(1)
39.948(1)
74.921595(6)
[210]
137.327(7)
[247]
9.0121831(5)
208.98040(1)
[270]
10.81
79.904
112.414(4)
40.078(4)
[251]
12.011
140.116(1)
132.90545196(6)
35.45
51.9961(6)
58.933194(4)
[285]
63.546(3)
[247]
[281]
[270]
162.500(1)
[252]
167.259(3)
151.964(1)
[257]
[289]
18.998403163(6)
[223]
157.25(3)
69.723(1)
72.630(8)
196.966569(5)
178.49(2)
[270]
4.002602(2)
164.93033(2)
1.008
114.818(1)
126.90447(3)
192.217(3)
55.845(2)
83.798(2)
138.90547(7)
[262]
207.2(1)
6.94
[293]
174.9668(1)
24.305
54.938044(3)
[278]
Mendelevium
Mercury
Molybdenum
Neodymium
Neon
Neptunium
Nickel
Niobium
Nitrogen
Nobelium
Osmium
Oxygen
Palladium
Phosphorus
Platinum
Plutonium
Polonium
Potassium
Praseodymium
Promethium
Protactinium
Radium
Radon
Rhenium
Rhodium
Roentgenium
Rubidium
Ruthenium
Rutherfordium
Samarium
Scandium
Seaborgium
Selenium
Silicon
Silver
Sodium
Strontium
Sulfur
Tantalum
Technetium
Tellurium
Terbium
Thallium
Thorium
Thulium
Tin
Titanium
Tungsten
Ununoctium
Ununpentium
Ununtrium
Uranium
Vanadium
Xenon
Ytterbium
Yttrium
Zinc
Zirconium
Md
Hg
Mo
Nd
Ne
Np
Ni
Nb
N
No
Os
O
Pd
P
Pt
Pu
Po
K
Pr
Pm
Pa
Ra
Rn
Re
Rh
Rg
Rb
Ru
Rf
Sm
Sc
Sg
Se
Si
Ag
Na
Sr
S
Ta
Tc
Te
Tb
Tl
Th
Tm
Sn
Ti
W
Uuo
Uup
Uut
U
V
Xe
Yb
Y
Zn
Zr
101
80
42
60
10
93
28
41
7
102
76
8
46
15
78
94
84
19
59
61
91
88
86
75
45
111
37
44
104
62
21
106
34
14
47
11
38
16
73
43
52
65
81
90
69
50
22
74
118
115
113
92
23
54
70
39
30
40
Atomic Mass
[258]
200.592(3)
95.95(1)
144.242(3)
20.1797(6)
[237]
58.6934(4)
92.90637(2)
14.007
[259]
190.23(3)
15.999
106.42(1)
30.973761998(5)
195.084(9)
[244]
[209]
39.0983(1)
140.90766(2)
[145]
231.03588(2)
[226]
[222]
186.207(1)
102.90550(2)
[281]
85.4678(3)
101.07(2)
[267]
150.36(2)
44.955908(5)
[269]
78.971(8)
28.085
107.8682(2)
22.98976928(2)
87.62(1)
32.06
180.94788(2)
[97]
127.60(3)
158.92535(2)
204.38
232.0377(4)
168.93422(2)
118.710(7)
47.867(1)
183.84(1)
[294]
[289]
[285]
238.02891(3)
50.9415(1)
131.293(6)
173.045(10)
88.90584(2)
65.38(2)
91.224(2)
*The 2013 values from the IUPAC website at http://www.chem.qmul.ac.uk/iupac/AtWt/
Numbers in parentheses indicate the uncertainty in the last digit of the atomic masses. Values enclosed in brackets, for example, [209], indicate the mass number of
the longest-lived isotope of the element. From J. Meija, et al., Pure Appl. Chem., 2016, 88, 265, DoI: 10.1515/pac-2015-0305.
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
IMportANt phySIcAl coNStANtS
constant
Speed of light (in vacuo)
Planck’s constant
Avogadro’s number
Faraday constant
Gas constant
Symbol
c
h
N
F
R
Boltzmann’s constant
Rest mass of the electron
Electronic charge
k
me
e
Value
2.99792 3108 ms21
6.626073 10234 J s
6.022140 31023 particles mol21
96485.33 C mol21
8.31446 J K21 mol21
0.0820578 L atm K21 mol21
1.38065 3 10223 J K21
9.10938 3 10231 kg
1.602177 3 10219 C
eNergy coNVerSIoN FActorS
1 joule 5
1 erg 5
1 calorie 5
1 liter atmosphere 5
1 electron volt 5
Joules
1
1027
4.1840
1.0133 3 102
1.6022 3 10219
ergs
107
1
4.1840 3 107
1.0133 3 109
1.6022 3 10212
calories
2.3901 3 1021
2.3901 3 1028
1
24.217
3.8293 3 10220
liter
Atmosphere
9.8692 3 1023
9.8692 3 10210
4.1293 3 1022
1
1.5812 3 10221
electron Volts
6.2415 3 1018
6.2415 3 1011
2.6114 3 1019
6.3242 3 1020
1
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
Principles of
Instrumental Analysis
Seventh Edition
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
Principles of
Instrumental Analysis
Seventh Edition
Douglas A. Skoog
Stanford University
F. James Holler
University of Kentucky
Stanley R. Crouch
Michigan State University
Australia • Brazil • Mexico • Singapore • United Kingdom • United States
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
Principles of Instrumental Analysis,
Seventh Edition
Douglas A. Skoog, F. James Holler,
Stanley R. Crouch
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Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
We dedicate this book to Veronica Crouch (Nicky), who passed
away July 11, 2016 due to metastatic pancreatic cancer.
She was a valuable part of our team and will be greatly missed.
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203