noun
gram molecule; mole
Chemistry term for the amount of a substance whose mass in grams is numerically equal to its molecular weight. Equivalent to the modern mole concept, though 'mole' is now more common.
1グラム分子の水は約18グラムです。
One gram molecule of water is about 18 grams.
化学の授業でグラム分子の
I learned the concept of gram molecule in chemistry class.