First Principles of Chemical Philosophy
First Principles of Chemical Philosophy
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In our eReader you can find the full English version of the book. Read First Principles of Chemical Philosophy 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 First Principles of Chemical Philosophy
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Assume for the mo- ment that the molecular weight is equal to 100 then —^ =z 3.50 the number of atoms of carbon.
^ = 6.50 « « « « " hydrogen.
-^^'^^ = 3.22 « " u a u oxygen.
This would be the number of atoms of each element if the sum of the atomic weight, that is, the molecular weight, of sugar, were equal to 100. As, from the very definition, frac- tional atoms cannot exist, these numbers are impossible, but any other possible number of atoms must be either a multiple or a submultiple of the ...numbers found ; and we can easily dis- 44 STOCHIOMETRY.
cover the fewest number of whole atoms possible, by seeking for the three smallest whole numbers which stand to each other in the relation of 3.50 : 6.50 : 3.22, a proportion which is very nearly satisfied by 12 : 22 : 11. Hence, the simplest possible symbol is G^H^O^, and this has been adopted by chemists as the symbol of cane sugar, although, from anything we as yet know, the symbol may be a multiple of this. If now, taking this symbol as our starting-point, we calculate the percentage composition which would exactly correspond to it, we obtain the following results, which we have arranged in a tabular form, so that the student may compare the theoretical compo- sition with the numbers Peligot obtained by actual analysis.
What to read after First Principles of Chemical Philosophy?
You can find similar books in the "Read Also" column, or choose other free books by Josiah Parsons Cooke to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Assume for the mo- ment that the molecular weight is equal to 100 then —^ =z 3.50 the number of atoms of carbon.
^ = 6.50 « « « « " hydrogen.
-^^'^^ = 3.22 « " u a u oxygen.
This would be the number of atoms of each element if the sum of the atomic weight, that is, the molecular weight, of sugar, were equal to 100. As, from the very definition, frac- tional atoms cannot exist, these numbers are impossible, but any other possible number of atoms must be either a multiple or a submultiple of the ...numbers found ; and we can easily dis- 44 STOCHIOMETRY.
cover the fewest number of whole atoms possible, by seeking for the three smallest whole numbers which stand to each other in the relation of 3.50 : 6.50 : 3.22, a proportion which is very nearly satisfied by 12 : 22 : 11. Hence, the simplest possible symbol is G^H^O^, and this has been adopted by chemists as the symbol of cane sugar, although, from anything we as yet know, the symbol may be a multiple of this. If now, taking this symbol as our starting-point, we calculate the percentage composition which would exactly correspond to it, we obtain the following results, which we have arranged in a tabular form, so that the student may compare the theoretical compo- sition with the numbers Peligot obtained by actual analysis.
What to read after First Principles of Chemical Philosophy?
You can find similar books in the "Read Also" column, or choose other free books by Josiah Parsons Cooke to read onlineMoreLess
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