n(H2)=0.125mol,H2全部来自于醇羟基,则n总=0.25mol,则混合醇的平均相对分子质量M=46.M(甲醇)=32g/mol,M(丙醇)=50g/mol,M(乙醇)=46g/mol。则这两种物质应该是甲醇和丙醇。注意,丙醇有两种同分异构体。设甲、丙醇的物质的量x、yx+y=0.2532x+50y=11.5解得,x=0.03125w=46*0.03215/11.5*110%=12.5%