This problem is providing information about the molar mass of octane, which is 114.26 g/mol and the mass of hydrogen that is in there, 18.17 g, it means we conclude that the molecular formula is C₈H₁₈ according to the following:
In chemistry, we define molecular formulas as those containing the types and number of atoms a compound has, according to the elements across the periodic table and the subscripts it has, standing for the number of each atom in the formula.
In this case, we note that 18.17 g out of 114.26 g in one mole of octane is related to hydrogen, which means that the mass of carbon is 96.09 g in one mole of octane. Next, we divide the mass of each atom by the corresponding atomic mass in order to calculate the subscript in the formula:
[tex]H:\frac{18.17}{1.01}=18\\\\C:\frac{96.09}{12.01} =8[/tex]
Therefore, the resulting formula is C₈H₁₈
Learn more about molecular formulas: https://brainly.com/question/1247523
