IDNStudy.com, kung saan ang iyong mga tanong ay natutugunan ng eksaktong sagot. Ang aming mga eksperto ay nagbibigay ng mabilis at eksaktong sagot upang tulungan kang maunawaan at malutas ang anumang problema.

Chemical analysis of one of the constituents of gasoline showed that it consists of 92.29% carbon and 7.71% hydrogen by mass. If the molecular mass of the compound is 78 g/mol, determine its molecular formula. (C6H6)

Sagot :

The compound is CnHm 

[tex](\frac{78g}{mol}) (0.9229) = \frac{71.9862g}{mol}[/tex]  (mass of Carbon)

[tex](\frac{71.9862g}{mol})( \frac{1mol}{12g}) = 5.998 = 6[/tex]  = n


[tex](\frac{78g}{mol}) (0.0771) = \frac{6.0138g}{mol}[/tex]  (mass of Hydrogen)

[tex](\frac{6.0138g}{mol})( \frac{1mol}{1g}) = 6.0138 = 6[/tex]  = m

Its Molecular Formula is C₆H₆