The Freezing-Point
The Freezing-Point
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In our eReader you can find the full English version of the book. Read The Freezing-Point Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Freezing-Point
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9 98. 4 o. Oio 99. 5 93. 7 0. 050 90. 4 88. 4 An absolute agreement between the dissociation values obtained by the conductivity method and by the freezing- point method, is not to be expected, since the former method was used at 18 or 25, while the latter was 24 THE FREEZING-POINT METHOD applied at about o ; and further, the hydration of the dissolved substance produces a greater effect upon the results of the freezing-point, than upon the results of the conductivity method, as has been shown ...by Jones and Pearce. 1 1 Amer. Chem. Journ. , 38, 683 (1907).
PART II.
THE BOILING-POINT METHOD THEORETICAL The presence of a foreign, non-volatile substance diminishes the vapor pressure of the solvent in which it is dissolved. Since the boiling-point of a solvent, or of a solution, is the temperature at which the vapor-pres- sure just overcomes the pressure of the atmosphere, it follows that the solution having a lower vapor-pressure than the solvent, will have a higher boiling-point.
There are thus two quantities, either of which we may measure : The depression of the vapor-tension of the sol- vent, caused by the presence of the dissolved substance; or the rise in the boiling-point of the solvent, due to the same cause.
What to read after The Freezing-Point?
You can find similar books in the "Read Also" column, or choose other free books by Harry Clary Jones to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
9 98. 4 o. Oio 99. 5 93. 7 0. 050 90. 4 88. 4 An absolute agreement between the dissociation values obtained by the conductivity method and by the freezing- point method, is not to be expected, since the former method was used at 18 or 25, while the latter was 24 THE FREEZING-POINT METHOD applied at about o ; and further, the hydration of the dissolved substance produces a greater effect upon the results of the freezing-point, than upon the results of the conductivity method, as has been shown ...by Jones and Pearce. 1 1 Amer. Chem. Journ. , 38, 683 (1907).
PART II.
THE BOILING-POINT METHOD THEORETICAL The presence of a foreign, non-volatile substance diminishes the vapor pressure of the solvent in which it is dissolved. Since the boiling-point of a solvent, or of a solution, is the temperature at which the vapor-pres- sure just overcomes the pressure of the atmosphere, it follows that the solution having a lower vapor-pressure than the solvent, will have a higher boiling-point.
There are thus two quantities, either of which we may measure : The depression of the vapor-tension of the sol- vent, caused by the presence of the dissolved substance; or the rise in the boiling-point of the solvent, due to the same cause.
What to read after The Freezing-Point?
You can find similar books in the "Read Also" column, or choose other free books by Harry Clary Jones to read onlineMoreLess
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