Question

ms=?H2SO4
c=98%
+
400gCu
? g, moli, l de gaz care se obtin

Answer 1

2H₂SO₄+Cu=CuSO₄+SO₂+2H₂O

γ(Cu)=m/M;M=64g/mol;γ(Cu)=400/64=6.25 mol

γ(Cu)=γ(SO₂)=6.25 mol

m(SO₂)=M*γ(SO₂);M(SO₂)=32+16*2=64g/mol

m(SO₂)=64g/mol*6.25 mol=400 g

V(SO₂)=γ(SO₂)*Vm=6.25mol*22.4l/mol=140l