Molecular formulas give the kind and number of atoms of each element present in a molecular compound. In many cases, the molecular formula is the same as the empirical formula.
Empirical formulas can be determined from the percent composition of a compound. In order to determine its molecular formula, it is necessary to know the molar mass of the compound. Chemists use an instrument called a mass spectrometer to determine the molar mass of compounds.
A procedure is described that allows the calculation of the exact molecular formula for a compound.
We all struggle to learn the complex concept in the class and spend elongated hours searching for methods to help yourself move behind memorization to comprehension. Elaborative interrogation and self-explanation are two additional learning strategies [...]