問題詳情
30. You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of1.00g，bum it in air,|and collect 2.20 g of carbon dioxide and 0.400 g water. The molar mass of aspirin is between 170 and 190g/mol. ThemolecularEform of aspirin isc
(A) C6H8O5
(B) C9H8O4
(C)C8H10O5
(D)C10H6O4
(E)none of these
參考答案
答案：B
難度：適中0.5
統計：A(0),B(2),C(1),D(0),E(0)