Answer to Question #188791 in General Chemistry for David festus

Question #188791

Calculate the molecular formula of an organic compound containing 72.31% carbon and 7.69% hydrogen by mass if it's relative molar mass is 78. (C=12,H=1)


1
Expert's answer
2021-05-04T14:27:27-0400



Moles of C "= \\frac{72.31}{12}=6.03moles"


Mole of H "= \\frac{7.69}{1}= 7.69moles"


Molecular formula = "C_6H_{8}"



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