would I consider the g/mol to be an abbreviation? If it is an abbreviation, and I am using the Chemistry code, would I use a punctuation indicator before the semicolon? And just to make sure, I would use the letter indicator before the g in g/mol?
g and mol are abbreviations so the g would require the letter indicator. In Chemistry Code, letters and abbreviations are both punctuated mathematically, so you would use a punctuation indicator before the semicolon that follows g/mol.