Răspuns:1mol dun orice substanta contine 6,023*10^23 particule(atomi,ioni,molecule)
1 mol azot.....6,023*10^23 molecule
X moli.......82,17*10^20 molecule
X=82,17*10^20/6,023*10^23=13,64*10^-3=0,01364 moli
Explicație:
