CO2和H2O物质的量之比=3:4
所以质量比=(44*3):(18*4)=11:6
所以m(CO2)=1.02/17 *11=0.66g
m(H2O)=1.02/17 * 6=0.36g
n(C)=0.66/44=0.015mol
n(H)=0.36/18 * 2=0.04mol
n(烃)=0.112/22.4=0.005mol
所以1mol烃含C=0.015/0.005=3,含H=0.04/0.005=8
所以分子式是C3H8
CO2和H2O物质的量之比=3:4
所以质量比=(44*3):(18*4)=11:6
所以m(CO2)=1.02/17 *11=0.66g
m(H2O)=1.02/17 * 6=0.36g
n(C)=0.66/44=0.015mol
n(H)=0.36/18 * 2=0.04mol
n(烃)=0.112/22.4=0.005mol
所以1mol烃含C=0.015/0.005=3,含H=0.04/0.005=8
所以分子式是C3H8