超簡單化學題

MOLECULAR MASS梗係唔等於 AVOGADRO CONSTANT 再xmass la= =


1.首先, 你要清楚呢條式:
MASS/MOLECULAR MASS
=NO OF MOLES
=NO OF PARTICLES/Avogadro constant(6.02x10^23)

2.你如果要從avogadro constant 找 molecular mass 一定要有no of particles先 再係到找個mole 姐係你先要睇呢條式先:
NO OF MOLES = NO OF PARTICLES/AVOGADRO CONSTANT(6.02x10^23)



FOR EXAMPLE: 個no of　ｐａｒｔｉｃｌｅｓ係5.1x10^9 咁係就要將5.1x10^9 over番個6.02x10^23 就find到個mole la 個mole係8.4717x10^31(只係舉例)



3.再將mass over no of moles 就可以知道個molecular mass姐係呢條式:

MASS/MOLECULAR MASS = NO OF MOLES


好似岩岩個例子:比如個mass係0.5g 咁將0.5g 再over 岩岩個mole 8.4717x10^31 就find到個molecular mass la= = 係5.9019x10^-33(只係舉例俾你聽個數一定唔會咁怪)










~WInG