Answer:
0.3 moles of aluminum
Step-by-step explanation:
The reaction of Aluminium with copper sulfate reacts to give aluminium sulfate and copper metal ,
The balanced chemical reaction is as follows -
2Al + 2 CuSO4 ----> Al2(SO4)3 + 3Cu
From the above balanced equation ,
considering the stoichiometry ,
3 mole of Copper is produced , by using 2 moles of Aluminium,
using unitary method ,
hence,
1 mole of copper is produced , by using 2/3 moles of Aluminum ,
(from the question , 0.45 moles of copper )
Therefore ,
0.45 mole of copper is produced , by using 2/3 * 0.45 mole Aluminium,
Solving,
2/3 * 0.45 mole = 0.3 mol
Hence,
0.3 moles of aluminum will be required to produce, 0.45 moles of copper metal.