1. A compound has the E.F. Mo2Cl3Br5 with a molar mass of 300 g/mol.
2. A compound has the EF.CH2O with the molar mass of 180.18 g/mol.
3. A compound containing Nitrogen(13.8 g), and Oxygen (4.2 g) only has a molar mass of 90.3 g/mol. Determine the molecular formula of the compound.
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The elemental makeup of a compound defines its chemical identity, and chemical formulas are the most succinct way of representing this elemental makeup. When a compound’s formula is unknown, measuring the mass of each of its constituent elements is often the first step in the process of determining the formula experimentally. The results of these measurements permit the calculation of the compound’s percent composition, defined as the percentage by mass of each element in the compound. For example, consider a gaseous compound composed solely of carbon and hydrogen
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