4Al+3O2-to>2al2O3
0,8----0,6---------0,4
n Al=\(\dfrac{21,6}{27}\)=0,8 mol
=>VO2=0,6.22,4=13,44l
m Al2O3=0,4.102=40,8g
=>Vkk=13,44.5=67,2l
\(m_{Al}=\dfrac{21,6}{27}=0,8\left(mol\right)\)
PTHH: 4Al+3O2\(\underrightarrow{t^o}\)2Al2O3
0,8 0,6 0,4 (mol)
\(V_{O_2}=0,6.22,4=13,44\left(l\right)\\ m_{Al_2O_3}=0,4.102=40,8\left(g\right)\\ V_{kk}=13,44.5=67,2\left(l\right)\)