Ethylenoxid (kurz EO) ist ein farbloses, hochentzündliches Gas mit süßlichem Geruch und das einfachste Epoxid.Es ist ein wichtiges Zwischenprodukt bei der Herstellung von Ethylenglycol und anderen Chemikalien.
Definitions of molecular mass, molecular weight, molar mass and molar weight. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12) Molar mass (molar weight) is the mass of one mole of a substance and is ...
Feb 17, 2020 · Finding the empirical and molecular formula is basically the reverse process used to calculate mass percent or mass percentage. Step 1: Find the number of moles of each element in a sample of the molecule.
First add up the molar masses that make up the substance CH2O: So: 12.01 + 2 (1.0079) + 15.999 = 30.02. Now see how many times your mass fits into the molar mass of the substance, by dividing: 180/30.02 = 5.99->6. Now the molecular formula is 6 times the ratios of the empirical formula: So, the molecular formula is: C6H12O6