Molecular Formula of the Compound «on:December 24, 2017, 06:27:57 AM » A 1.420 g sample of gaseous compound occupies 215 mL at 31.2 °C and 836 mmHg. The compound consists of 42.6 % O , 48.0 % C and 9.40 % H by mass. What is the molecular formula of the compound?
What is the difference between the empirical and molecular formula of a compound?Can they ever be the same?Explain.相关知识点: 试题来源: 解析 (1)分子式是用元素符号表示物质(单质、化合物)分子的组成及分子量的化学式. 而 (2)最简式又叫实验式,它仅能表示化合物组成中各元素原子数目的比例.通常是...
The empirical formula is the molecular formula where the subscripts are in the lowest terms. The molecular formula is the actual ratio of the atoms in the compound. One can solve determine the molecular formula of a compound by dividing the molecular ...
The m/z of the molecular ion peak of a compound is 87. ( ) may be the formula of the compound. A. C7H7O2 B. C5H10O C. C4H9NO D. C6H15 点击查看答案进入小程序搜题 你可能喜欢 加强道口当班(金融用物) 点击查看答案进入小程序搜题 以下对于高强螺栓施工工艺的说法,正确的是 A、处理后的...
1)molecular formula分子式 1.The results of crystal structure determinated by Four Circle Diffractometer and elementary analysis correct some mistakes in the writing of the molecular formula of SDA,besides,a reasonable molecular formula of SDA is also suggested.结果表明在双乙酸钠分子中不存在相对独立的水...
A compound contains only carbon,hydrogen,and oxygen.Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H2O.The molar mass of the compound is 176.1 g/mol.What are the empirical and molecular formulas of the compound?(Type your answer using the format CO2 for CO2.)empiri...
What does IR spectroscopy allow us to determine? A. the molecular formula of a compound B. the kinds of bonds in a compound C. the molecular weight (分子量) of a compound D. the molecular formular 相关知识点: 试题来源: 解析 答案:B ...
Re: molecular formula of compound «Reply #2 on:September 26, 2022, 01:45:42 PM » Quote from: sjb on September 26, 2022, 12:59:00 PM For a generic compound CxHywhat is the equation for this burning? CxHy+O2 ... But I can't find the solution without molecular formula. ...
The empirical formula of a compound is defined as the smallest ratio of all the participating atoms in the compound. A compound does not exist in the empirical formula form, so we have the molecular formula, which shows the actual formula of the ...
molecular formula noun : a chemical formula that gives the total number of atoms of each element present in a molecule Medical Definition molecular formula noun : a chemical formula for a compound existing as discrete molecules that gives the total number of atoms of each element in a mol...