one mole of a substance represented by a formula is the amount containing the same number of formula units as the number of atoms in exactly 12.0g of carbon-12.
e一句係點解呀?
點解carbon會係12, 而唔係6 o既?
what is mole....
2007-02-06 6:04 am
回答 (1)
2007-02-06 6:11 am
✔ 最佳答案
炭原子暈是12 (6中子+6質子)(6中子+6質子)X 6.02X10^23=12克
收錄日期: 2021-04-23 19:32:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070205000051KK04488