Answer : The number of moles of [tex]H_2SO_4[/tex] needed, 7.5 mole
Solution : Given,
Moles of Al = 5.0 moles
The balanced chemical reaction is,
[tex]2Al+3H_2SO_4\rightarrow 3H_2+Al_2(SO_4)_3[/tex]
From the balanced chemical reaction, we conclude that
As, 2 moles of Al react with 3 moles of [tex]H_2SO_4[/tex]
So, 5.0 moles of Al react with [tex]\frac{3}{2}\times 5.0=7.5[/tex] moles of [tex]H_2SO_4[/tex]
Therefore, the number of moles of [tex]H_2SO_4[/tex] needed, 7.5 mole
