pV=nRT (T=t+273) => n=pV/RT=2*73,846/0,082*300=6moli acetilena
64g 1mol
CaC₂ + H₂O -> C₂H₂ + CaO
x=? 6moli
x=6×64=384g carbid
384g...............60%
y....................100% => y=384*100/60=640g carbid pur
64/100=640/mimpur => mimpur=640*100/64=1000g carbid=1kg carbid