Answer the following questions about a pure compound that contains only carbon, hydrogen, and oxygen. A 0.7549 g sample of the compound burns in O2 (g) to produce 1.9601 g of CO2 (g) and 0.3370 g of H2O (g).
a) Calculate the individual masses of C, H, and O in the 0.7549 g sample.
b) Determine the empirical formula for the compound.
A 0.5246 g sample of the compound was dissolved in 10.0012 g of lauric acid, and it was determined that the freezing point depression of the lauric acid was lowered by 1.68 degrees Celsius. The value of Kf of lauric acid is 3.90 degrees Celsius per molal. Assume that the compound does not dissociate in lauric acid.
c) Calculate the molality of the compound dissolved in the lauric acid.
d) Calculate the molar mass of the compound from the information provided.
e) Without doing any calculations, explain how to determine the molecular formula of the compound based on the answers to parts (b) and (d)