题目

英文化学题,求解
A sample of an unknown biochemical compound is found to have a percent composition of 40.45 percent carbon, 7.92 percent hydrogen, 15.73 percent nitrogen and the balance oxygen. What is the simplest formula for this compound ?

提问时间：2021-01-04

答案

Gen Chem 1 或者 高中AP的基础题.
两个条件：1.化合物；2.元素组成：40.45%的碳,7.92%的氢；15.73%的氮,剩下的就是氧.
求化合物的最简式.
用ratio（比例）解答好了：
C:H:N:O=(40.45%/12):(7.92%/1):(15.73%/14):[(100%-40.45%-7.92%-15.73%)/16]=3:7:1:2(注意最终结果是最简整数比）.
对了,化学式自己写了.C3H7NO2