n(Al₂O₃) = 3.5 моль
m(Al) = ?
4Al + 3O₂ → 2Al₂O₃
По реакции: n(Al) = 2n(Al₂O₃)
n(Al) = 7 моль
m(Al) = 7 * 27 = 189г.
n(Al₂O₃) = 3.5 моль
m(Al) = ?
4Al + 3O₂ → 2Al₂O₃
По реакции: n(Al) = 2n(Al₂O₃)
n(Al) = 7 моль
m(Al) = 7 * 27 = 189г.