Question

Giúp em câu 1 

Answer 1

a) \(n_{Al}=\dfrac{5,4}{27}=0,2\left(mol\right)\)

PTHH: \(2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)

_____0,2----------------------->0,1--------->0,3_________(mol)

=> \(V_{H_2}=0,3.22,4=6,72\left(l\right)\)

b) \(m_{Al_2\left(SO_4\right)_3}=0,1.342=34,2\left(g\right)\)