1. Vitamin C contains the elements C, H, and O. It is known to contain 40.9% C and 4.58% H by mass. The molar mass of vitamin C has been found to be about 180. The molecular formula for vitamin C is
(A) C2H3O2
(B) C3H4O3
(C) C4H6O4
(D) C6H8O6
(E) none of these

答案:登入後查看
統計: 尚無統計資料

詳解 (共 1 筆)

#6822930
1. 題目解析 題目要求我們找出維生素...
(共 1322 字,隱藏中)
前往觀看
0
0