2CH3-CH2-CH2-ONa + H2==> С2H6-CH2-CH2-OH+2Na
Дано : w (Ba) - ? w (S) - ? w - (O4) - ? w = 56 + 32 + 16 * 4 = 152 w (Ba) = 1 * 56 / 152 * 100% = 27% w (S) = 1 * 32 /152 * 100% = 47.5 % w (O) = 4 * 16 /153 * 100% = 9.7 %
20 X L
С2H4+3O2-->2CO2+2H2O M(C2H4)=28 g/mol , Vm=22.4 L/mol
28 2 * 22.4
20/28 = X/44.8
X=32
V(CO2)=32*90\%/100\%=28.8 л
<span>ответ 28.8 л</span>