Question

墨跡

想請教計算方法，目前求得莫爾比但後續處以0.18（化整數）時感覺很怪，題目要求120克pan的經驗式，但我化完整數後光是C+H前兩項的質量就會超過120克了，想請教各位如何計算

C z Hz N O S o f
3.44 Peroxyacylnitrate (PAN) is one of the components
of smog. It is a compound of C, H, N, and O. Deter-
mine the percent composition of oxygen and the
empirical formula from the following percent
composition by mass: 19.8 percent C, 2.50 percent
H, 11.6 percent N. What is its molecular formula,
given that its molar mass is about 120 g?

3144
C:19.89%
7121.65
PAN-H:2.5070 2.5
25
CHINID
1.65
215
↙
3) 0.18 0.18 0.18 4413
0.20
10. 11.6% 714.01 0.18
:
19:14.1:23
0:66.19% 54.13
質量比
molte
→GH14N023

大一普化，計算120克的經驗式 莫爾比 經驗式