Răspuns:
Explicație:
2Ca + O2 → 2CaO
8 moli.............x moli
[tex]{\displaystyle \mu }_{CaO} ={\displaystyle \mu }_{Ca} +{\displaystyle \mu }_{O} = 40+16=56 g/ mol[/tex]
x= [tex]\frac{8*2}{2} =8 moli[/tex]
[tex]{\displaystyle \nu }=\frac{m}{{\displaystyle \mu }}\\[/tex]
m=[tex]{\displaystyle \mu }*{\displaystyle \nu }[/tex]
m=56*8
m=448 g
Se obtin 8 moli de CaO prin arderea a 8 moli de Ca pur
Se obtin 448 g de CaO prin arderea a 8 moli de Ca pur