Question

某天然蛋白质水解的产物之一含有C,H,O,N四种元素,其中一个分子中只含有一个N原子,且N,H,O三种元素的质量分数为1

Answer 1

C的的质量分数为:

1-(15.73% + 7.87% + 35.96%)＝40.44%

N,H,O,C的比例为:

15.73/14 :7.87/1 :35.96/16 :40.44/12

=1.12 :7.87 :2.25 :3.37

= 1:7:2:3

分子式:C3H7O2N1

结构式：H2N-CH(CH3)-COOH

官能团:-NH2,-COOH