Question

Cati moli de carbon se pot arde in oxigenul obtinut la descompunerea a 112 g CaO ? Dar de sulf ?

Answer 1

CaO---->Ca + 1/2 O2
112 g CaO.......x g O
56 g CaO.........1/2*32 g O         x = 32 g O
C + O2 ---> CO2
12 g C....32 g O
y g C......32 g O
y = 12 g => 12/12 = 1 mol C
S + O2-----> SO2
32 g S......32 g O
z g S........32 g O
z=32g => 32/32 = 1 mol S