Răspuns :
CH2=CH2 + 3O2 =2 CO2 + 2H2O
3moli...........100moli O2
1mol ............x moli etena
x=100/3=33,33 moli etena
m(pura)=33,33×28=933, 33 g
m(impura)= m(pura)/puritate ×100
= 1555,55 g
3moli...........100moli O2
1mol ............x moli etena
x=100/3=33,33 moli etena
m(pura)=33,33×28=933, 33 g
m(impura)= m(pura)/puritate ×100
= 1555,55 g
C2H4 + 3O2 = 2CO2 + 2H2O
n etena pura = nO2/3 = 100/3 moli
m = 100/3 x 28 = 933,33g
m imp. = 933,33·100/60 = 1555,55g
n etena pura = nO2/3 = 100/3 moli
m = 100/3 x 28 = 933,33g
m imp. = 933,33·100/60 = 1555,55g