One gram of a substance containing hydrogen, carbon, and oxygen during combustion analysis produces 1.4656 g of CO₂ and 0.6000g of H₂O. If the molar mass of the compound is 180 g/mol then what is the molecular formula of the compound?

Question

Quizplus · Accepted Answer

The molecular formula is determined by analyzing the combustion products and their masses. From 1.4656 g of CO2, the amount of carbon can be calculated, and from 0.6000 g of H2O, the amount of hydrogen can be determined. The difference in mass between the original substance and the sum of carbon and hydrogen gives the oxygen content. Given the molar mass, these proportions can be adjusted to find the molecular formula, which in this case corresponds to C6H12O6, matching choice E.

One Gram of a Substance Containing Hydrogen, Carbon, and Oxygen