\(n_{H_2}=\dfrac{3,36}{22,4}=0,15mol\)
PTPU
\(2Al+3H_2SO_4->Al_2\left(SO_4\right)_3+3H_2\)
0,1............0,15..............0,05..............0,15(mol)
nH2SO4=0,15mol
mH2SO4=0,15.98=14,7g
\(C\%H_2SO_4=\dfrac{14,7.100}{150}=9,8\%\)
nAl2(SO4)3=0,05mol
mAl2(SO4)3=0,05.342=17,1g
\(m_{ddspu}=m_{Al}+m_{ddH_2SO_{\text{4}}}-m_{H_2}\)
=0,1.27+150-0,15.2=168,6g
\(C\%_{Al_2\left(SO_4\right)_3}=\dfrac{17,1.100}{168,6}=10,14\%\)