CONTENTS. V 



Part VII. Conductivity and Ionization of Ammonium Hydroxide, Ammonium 



Chloride, and Acetic Acid at 218 and 306, and of Sodium Acetate at 306. 



Hydrolysis of Ammonium Acetate and Ionization of Water at 218 and 306. 

 By Robert B. Sosman. 



75. Outline of the investigation 193 



76. Apparatus and procedure ...... < 193 



77. Instrumental errors and their corrections 196 



78. Preparation of the substances and solutions 197 



79. Errors affecting the solutions and their correction 201 



80. The specific-volume data 209 



81. Conductance-capacity of the apparatus 210 



82. The conductivity data 212 



83. Equivalent-conductance values at round temperatures . . . . . 220 



84. Final values of the equivalent conductance and their variation 



with the concentration and temperature 224 



85. Ionization-values and their variation with the concentration and 



temperature 227 



86. Hydrolysis of ammonium acetate and ionization of water at 



218 and 306 229 



87. Summary 234 



Part VIII. Conductivity and Ionization of Hydrochloric, Nitric, and Sul- 

 phuric Acids up to 306, and of Phosphoric Acid and Barium Hydroxide up 

 to 156. By Arthur A. Noyes and Guy W. Eastman. 



88. Outline of the investigation 239 



89. Description of the apparatus and method 239 



90. Preparation of the substances and solutions 241 



91. Discussion of errors and corrections 245 



92. Conductance-capacity of the bomb 247 



93. The conductivity data 248 



94. Summary of the values of the equivalent conductance 256 



95. Final values of the equivalent conductance at round concen- 



trations 261 



96. Change of the equivalent conductance with the concentration 



and the temperature 264 



97. Ionization of the substances and its change with the concentra- 



tion and the temperature 267 



98. Summary 279 



Part IX. Ionization of Water at 0, 18, and 25 derived from Conductivity 

 Measurements of the Hydrolysis of the Ammonium Salt of Diketotetra- 



HYDROTHIAZOLE. By C. W. KaNOLT. 



99. Outline of the investigation 285 



100. Preparation of the substances and solutions 286 



101. Apparatus and method 288 



102. The conductivity and ionization-constants of ammonium hy- 



droxide and diketotetrahydrothiazole 289 



103. Conductivity and hydrolysis of the ammonium salt of diketo- 



tetrahydrothiazole 292 



104. The ionization of water 296 



105. Summary 298 



Part X. Solubility of Silver Chloride, Bromide, and Sulphocyanate at 100 

 By William Bottger. 



106. Outline of the investigation 301 



107. Description of the experiments 301 



108. The conductivity data 305 



109. Final conductance values for the saturated solutions 307 



110. The solubility values 308 



