\(a.Fe+H_2SO_4\rightarrow FeSO_4+H_2\\b. n_{Fe}=\dfrac{22,4}{56}=0,4\left(mol\right)\\ n_{H_2SO_4}=n_{Fe}=0,4\left(mol\right)\\ \Rightarrow m_{H_2SO_4}=0,4.98=39,2\\ c.n_{H_2}=n_{Fe}=0,4\left(mol\right)\\ \Rightarrow V_{H_2}=0,4.22,4=8,96\left(l\right)\\ d.H_2+CuO-^{t^o}\rightarrow Cu+H_2O\\ n_{Cu}=n_{H_2}=0,4\left(mol\right)\\ \Rightarrow m_{Cu}=0,4.64=25,6\left(g\right)\)
d) PTHH: H2+CuO---to---> H2O+Cu
0,4 0,4
mCuO=n.M=0,4x80=32g