Determine the empirical formula and the molecular formula of an organic compound containing 92.3% by mass carbon and the remainder by mass being hydrogen. Thanks!

Question

anonymous · Answer

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anonymous · Answer

do you have the Molar mass of the compound??
Without that I don't think I cannot help you find the molecular formula....

anonymous · Answer

Thanks! the molar mass wasn't provided. Is there any other way to find the molecular formula???

anonymous · Answer

i did some research and i think the molecular formula is C6H6. The relative molecular mass of C6H6 ( benzene) is 78 g/mol. :, C=(6*12) + H=(6*1) which is equal to 78 g/mol.
Therefore C$$\frac{ 72 }{ 78} \times 100=92.3 % $$ and H $$\frac{ 6 }{ 78 } \times 100= 7.7 %$$.
The problem is How do I determine the molar mass 78 g/mol??

anonymous · Answer

to find the molecular formula you would have to multiply the empirical formula by a factor n.
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