chem syllabus for 2019 & 2020
https://www.edb.gov.hk/attachment/en/curriculum-development/kla/science-edu/ref-and-resources/Supplementary_note_for_Chem_30Oct2015_e.pdf
你telegram我啦
https://t.me/elvislamchem
有時有empirical formula同molecular mass理論上可以 只要元素之間乎合到empirical個比例就得
搵molecular formula
let molecular formula (CxHyOz)n
個n計出黎係咪可以唔係整數?
但empirical本身已經係整數 所以乘個n唔係整數既機會極微