Question

Ce cantitate de acid clorhidric si acid sulfuric trebuie consumate in reactie cu fierul? Se cunoaste ca in fiecare reactie se consuma cate 3 moli de fier
Multumesc anticipat :3 :))

Answer 1

Fe+2HCl=FeCl₂+H₂
1mol......................56g Fe
3moli.....................x
x=3*56/1=168g Fe

Masa molara HCl=35.5+1=36.5g/mol
y=masa de Fe consumata in reactia cu HCl
y=168*2*36.5/56=219g HCl

Fe+H₂SO₄=FeSO₄+H₂
Masa molara H₂SO₄=2+32+64=98g/mol
z=masa de Fe consumata in reactia cu H₂SO₄
z=168*98/56=294g H₂SO₄