The concentration, or abundance, of ethyl alcohol in a typical molecular cloud is about 1 molecule per 10 8 cubic meters.

The concentration, or abundance, of ethyl alcohol in a typical molecular cloud is about 1 molecule per 108 cubic meters. What volume of such a cloud would contain enough alcohol to make a martini (about 10 grams of alcohol)? A molecule of ethyl alcohol has 46 times the mass of a hydrogen atoms (that is, ethyl alcohol has a molecular weight of 46).