va rog urgent dau coaroan si stele plisss​

Va Rog Urgent Dau Coaroan Si Stele Plisss class=

Răspuns :

Răspuns:

MCaCO3 =40+12+4×16=100kg/kmol

MCaO =40+16=56kg/kmol

100kg............56kg

CaCO3 => CaO + CO2

xkg.................280kg

x=280×100/56=500kg CaCO3

mCaCO3=mpur =500kg

mtotal =mpur×100/p=500×100/80=625 kg