SOLVING PROBLEMS:
A CHEMISTRY HANDBOOK
Appendix A
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
308 Chemistry: Matter and Change
Solving Problems: A Chemistry Handbook
Physical Constants
Quantity
Symbol
Value
Atomic mass unit
amu
1.67 ϫ 10 Ϫ27 kg
Avogadro‘s number
N
6.02 ϫ 10 23 particles/mole
Ideal gas constant
R
8.314 L и kPa/mol и K
0.0821 L и atm/mol и K
62.4 mm Hg и L/mol и K
62.4 torr и L/mol и K
Mass of an electron
m e
9.11 ϫ 10 Ϫ31 kg
5.49 ϫ 10 Ϫ4 amu
Mass of a neutron
m n
1.675 ϫ 10 Ϫ27 kg
1.008 665 amu
Mass of a proton
m p
1.673 ϫ 10 Ϫ27 kg
1.007 276 amu
Molar volume of ideal
gas at STP
V
22.4 L/mol
Normal boiling point
T b
373.15 K
of water
100.0ЊC
Normal freezing point
T f
273.15 K
of water
0.00ЊC
Planck‘s constant
h
6.626 ϫ 10 Ϫ34 J и s
Speed of light in
c
2.997 925 ϫ 10 8 m/s
a vacuum
Table A-2
A CHEMISTRY HANDBOOK
Appendix A
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
308 Chemistry: Matter and Change
Solving Problems: A Chemistry Handbook
Physical Constants
Quantity
Symbol
Value
Atomic mass unit
amu
1.67 ϫ 10 Ϫ27 kg
Avogadro‘s number
N
6.02 ϫ 10 23 particles/mole
Ideal gas constant
R
8.314 L и kPa/mol и K
0.0821 L и atm/mol и K
62.4 mm Hg и L/mol и K
62.4 torr и L/mol и K
Mass of an electron
m e
9.11 ϫ 10 Ϫ31 kg
5.49 ϫ 10 Ϫ4 amu
Mass of a neutron
m n
1.675 ϫ 10 Ϫ27 kg
1.008 665 amu
Mass of a proton
m p
1.673 ϫ 10 Ϫ27 kg
1.007 276 amu
Molar volume of ideal
gas at STP
V
22.4 L/mol
Normal boiling point
T b
373.15 K
of water
100.0ЊC
Normal freezing point
T f
273.15 K
of water
0.00ЊC
Planck‘s constant
h
6.626 ϫ 10 Ϫ34 J и s
Speed of light in
c
2.997 925 ϫ 10 8 m/s
a vacuum
Table A-2