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Thread: Looking for a compendium of compounds with the same molar mass but different chemical compositions

  1. #1 Looking for a compendium of compounds with the same molar mass but different chemical compositions 
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    When I was a student many years ago we had a table of compounds with common molar masses. They had all kinds of different chemical compositions. Now I need such a thing and cannot find a table like this because it is so easy to calculate molar masses by computer. Does anybody else still have a table like this? Organic compounds often have quite different compositions and identical or almost identical molar masses especially when they are reasonably big i.e. more than, say, 200 g/mol or so. However it takes forever to generate a table of the kind I would like to have working randomly with one of the programs that is on the internet.


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