a.
\(n_{Al}=0,8.2=1,6\left(mol\right)\Rightarrow m_{Al}=1,6.27=43,2\left(g\right)\)
b. \(n_{Al}=\dfrac{1,08}{27}=0,04\left(mol\right)\)
\(n_{Al_2\left(SO_4\right)_3}=\dfrac{1}{2}n_{Al}=\dfrac{1}{2}.0,04=0,02\left(mol\right)\)
\(\Rightarrow m_{Al_2\left(SO_4\right)_3}=0,02.342=6,84\left(g\right)\)
c. \(n_O=\dfrac{20,52}{342}.12=0,72\left(mol\right)\)
\(V_{CO_2}=0,72.24,79=17,8488\left(l\right)\)
\(a.m_{Al\left(SO_4\right)_3}=n.M=0,8.315=252g\)
\(b.n_{Al}=\dfrac{m}{M}=\dfrac{1,08}{27}=0,04mol\)
\(m_{Al\left(SO_4\right)_3}=n.M=0,04.315=12,6g\)
\(a.m_{Al_2\left(SO_4\right)_3}=n.M=0,8.342=273,6g\)
\(b.n_{Al}=\dfrac{m}{M}=\dfrac{1,08}{27}=0,04mol\)
\(m_{Al_2\left(SO_4\right)_3}=n.M=0,04.342=13,68g\)
\(c.n_{Al_2\left(SO_4\right)_3}=\dfrac{m}{M}=\dfrac{20,52}{342}=0,06mol\)
PTHH: Al2(SO4)3 + 3NaCO3 + 3H2O \(\rightarrow\) 2Al(OH)3 + 3Na2SO4 + 3CO2
TL: 1 3 3 2 3 3
mol: 0,0,6 \(\rightarrow\) 0,18
\(V_{CO_2}=n.22,4=0,18.22,4=4,032l\)