A view about the short histories of the mole and Avogadro's number

Foundations of Chemistry 15 (1):79-91 (2013)
The mole and Avogadro’s number are two important concepts of science that provide a link between the properties of individual atoms or molecules and the properties of bulk matter. It is clear that an early theorist of the idea of these two concepts was Avogadro. However, the research literature shows that there is a controversy about the subjects of when and by whom the mole concept was first introduced into science and when and by whom Avogadro’s number was first calculated. Based on this point, the following five matters are taken into consideration in this paper. First, in order to base the subject matter on a strong ground, the historical development of understanding the particulate nature of matter is presented. Second, in 1811, Amedeo Avogadro built the theoretical foundations of the mole concept and the number 6.022 × 1023 mol−1. Third, in 1865, Johann Josef Loschmidt first estimated the number of molecules in a cubic centimetre of a gas under normal conditions as 1.83 × 1018. Fourth, in 1881, August Horstmann first introduced the concept of gram-molecular weight in the sense of today’s mole concept into chemistry and, in 1900, Wilhelm Ostwald first used the term mole instead of the term ‘gram-molecular weight’. Lastly, in 1889, Károly Than first determined the gram-molecular volume of gases under normal conditions as 22,330 cm3. Accordingly, the first value for Avogadro’s number in science history should be 4.09 × 1022 molecules/gram-molecular weight, which is calculated by multiplying Loschmidt’s 1.83 × 1018 molecules/cm3 by Than’s 22,330 cm3/gram-molecular weight. Hence, Avogadro is the originator of the ideas of the mole and the number 6.022 × 1023 mol−1, Horstmann first introduced the mole concept into science/chemistry, and Loschmidt and Than are the scientists who first calculated Avogadro’s number. However, in the science research literature, it is widely expressed that the mole concept was first introduced into chemistry by Ostwald in 1900 and that Avogadro’s number was first calculated by Jean Baptiste Perrin in 1908. As a result, in this study, it is particularly emphasised that Horstmann first introduced the mole concept into science/chemistry and the first value of Avogadro’s number in the history of science was 4.09 × 1022 molecules/gram-molecular weight and Loschmidt and Than together first calculated this number
Keywords Avogadro’s number  Chemistry/Science education/History/Philosophy  Károly Than  Loschmidt’s number  Molar volume of gases  Mole
Categories (categorize this paper)
DOI 10.1007/s10698-011-9128-7
 Save to my reading list
Follow the author(s)
My bibliography
Export citation
Find it on Scholar
Edit this record
Mark as duplicate
Revision history
Request removal from index
Download options
Our Archive

Upload a copy of this paper     Check publisher's policy     Papers currently archived: 27,157
Through your library
References found in this work BETA

Add more references

Citations of this work BETA

No citations found.

Add more citations

Similar books and articles
What is the Mole?Peter G. Nelson - 2013 - Foundations of Chemistry 15 (1):3-11.
Quantitative Parsimony.Daniel Nolan - 1997 - British Journal for the Philosophy of Science 48 (3):329-343.
The Chemist's Concept of Molecular Structure.N. Sukumar - 2009 - Foundations of Chemistry 11 (1):7-20.
The Butterfly, the Mole and the Sage.Robert Elliot Allinson - 2009 - Asian Philosophy 19 (3):213-223.
A Comment on “Editorial 37”.Brian Sutcliffe & R. Woolley - 2011 - Foundations of Chemistry 13 (2):93-95.
Elements, Compounds, and Other Chemical Kinds.Robin Findlay Hendry - 2006 - Philosophy of Science 73 (5):864-875.

Monthly downloads

Added to index


Total downloads

41 ( #125,499 of 2,163,603 )

Recent downloads (6 months)

1 ( #348,037 of 2,163,603 )

How can I increase my downloads?

My notes
Sign in to use this feature

There  are no threads in this forum
Nothing in this forum yet.

Other forums