帮个忙啊!高二化学,快!
1。CH4, C2H6
2CO2+2Na2O2=Na2CO3+O2
88`````````````````32````````````````````88-32=56g/mol(每2molCO2通过Na2O2时，Na2O2的增重量）
m(CO2)```````````````````````````````````2。 24
m(CO2)=88*2。24/56=11*2。24/7=11*0。32=3。52g,```````n(CO2)=3。52/44=0。08mol
m(H2O)=2。04g`````````````````````````````````````n(H2O)=2。 ...全部
1。CH4, C2H6
2CO2+2Na2O2=Na2CO3+O2
88`````````````````32````````````````````88-32=56g/mol(每2molCO2通过Na2O2时，Na2O2的增重量）
m(CO2)```````````````````````````````````2。
24
m(CO2)=88*2。24/56=11*2。24/7=11*0。32=3。52g,```````n(CO2)=3。52/44=0。08mol
m(H2O)=2。04g`````````````````````````````````````n(H2O)=2。
04/18=0。34/3mol
乙烷和丙烷的体积比为:X:Y
(X+2Y)/(4X+6Y)=0。08:0。68/3````````````````X:Y=???
2。C2H6, C4H10
设原混合气体中乙烷的体积分数为:x
2C2H6`````+````7O2```=```4CO2```+```6H2O,
11。
2x``````````11。2x*7/2
2C4H10````+````13O2``=```8CO2```+```10H2O
11。2(1-x)``````11。2(1-x)*13/2
11。
2x*7/2 + 11。2(1-x)*13/2 = 47。6L
x=???。收起
