1mol atomi Na----------6,023 .10²³ atomi Na
xmoli-------------------12,046 .10²³ atomi Na
x=12,046 .10²³ : 6,023 .10²³= 2moli Na
n=m:M
m=n.M
m=2moli ..23g/moli=46 g Na
1mol Li----------6,023.10²³atomi Li
x-------------------18,069.10²³
x=18,069 .10²³ : 6,023.10²³=3 moli Li
m=n.M
m=3moli . 7g/moli=21 g Li
1mol Al----------6,023.10²³atomi Al
x-----------------30,115 .10²³
x=30,115 .10²³: 6,023.10²³=5moli Al
m=n.M
m=5moli.27g/moli=135 gAl
