# Problem: A compound of molar mass 177 g/mol contains only carbon, hydrogen, bromine, and oxygen. Analysis reveals that the compound contains 8 times as much carbon as hydrogen by mass.Find the molecular formula.

###### FREE Expert Solution

Recall that the empirical formula is the simplest whole-number ratio of elements in a compound. The molecular formula is related to the empirical formula based on the molar mass.

But, since only the molar mass of the compound and mass ratio of C and H are given, we need to use mathematical techniques to:

1. Determine the best subscripts for O and Br so that the compound’s molar mass is equal to 177 g/mole (based on its molecular formula).
2. Determine the subscript or mole ratio of C and H based on the given mass ratio
89% (270 ratings) ###### Problem Details

A compound of molar mass 177 g/mol contains only carbon, hydrogen, bromine, and oxygen. Analysis reveals that the compound contains 8 times as much carbon as hydrogen by mass.

Find the molecular formula.