Chemistry: An Elementary Text-book

Front Cover
 

Contents

I
1
II
10
III
22
IV
35
V
45
VI
56
VII
75
VIII
83
XVII
183
XVIII
189
XIX
206
XX
225
XXI
234
XXII
256
XXIII
270
XXIV
286

IX
99
X
112
XI
121
XII
128
XIII
137
XIV
150
XV
157
XVI
169
XXV
303
XXVI
315
XXVII
333
XXVIII
352
XXIX
366
XXX
381
XXXI
396

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Page 71 - Again nitrogen and oxygen form five compounds in the following ratios : 28:16, 14:16,28:48, 14:32, and 28:80, in which it will be seen that 7 parts of nitrogen are combined with 4, 8, 12, 16, and 20 parts of oxygen. This was stated by Dalton in the law of multiple proportions: If two elements unite in more than Substance Total weight Weight oxygen Weight hydrogen Weight chlorine Oxveen 32 32 Water 18.
Page 159 - Solution a. A quantity of any substance equal to its molecular weight in grams is a mole of that substance. Further, a mole of any substance contains the same number of molecules as a mole of any other material. This number is called Avogadro's number and equals 6.02 X 10" molecules per mole (Appendix A).
Page 407 - Inches Feet Miles Meters Kilometers Square inches Square yards Square centimeters Square meters Cubic inches Cubic yards Cubic centimeters Cubic meters Fluid ounces Quarts Cubic centimeters Liters Grains Ounces...
Page 28 - In the process of respiration some of the oxygen in the inhaled air is absorbed by the blood and carried to all parts of the body, where it combines with the hydrogen and carbon of the worn-out tissues.
Page v - ... world of industry. He should know that in the past chemistry has been one of the great forces which have determined the civilization and development of mankind, and should feel certain that in the future its importance will not be less. Consequently, the authors have tried to bring out the humanistic side of the science, to use as far as possible that material which is laden with intense human interest because of its significance to the race.

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