Question

dot chay hoan toan 1,68 lit (dktc) khí metan (ch4) sinh ra khi cacbonic va nuoc

a, khoi luong khi cacbonic va nuoc sinh ra

b the tich khong khi can de dot chay luong khi metan tren biet khi o2 chiem 20% the tich khong khi

Answer 1

a)n CH4=1,68/22,4=0,075(mol)

CH4+2O2---->CO2+2H2O

0,075----0,15------0,075----0,15(mol)

m CO2=0,075.44=3,3(g)

m H2O=0,15.18=2,7(g)

b) V O2=0,15.22,4=3,36(l)

V kk=3,36.5=16,8(l)