由已知可知O%=1-44.1%-8.82%=47.08%那么C:H:O的原子个数比为 44.1%/12: 8.82%/1 :47.08%/16=0.03675:0.0882: 0.029425 同时除以最小数0.029425 得 1.25: 2.99 : 1化为整数=5: 12:4C5H12O4