marinalondra marinalondra
  • 25-03-2021
  • Chemistry
contestada

If a compound has a molar mass of 70.13 g/mol and its empirical formula is CH2, what is its molecular formula

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ElectricAngel
ElectricAngel ElectricAngel
  • 25-03-2021

The molecular formula is ALWAYS, a whole number multiple of the empirical formula....and of course the multiple might be one...

And so we can write....

{empirical formula}n=molecular formula

And taking the given molecular mass of 70.13⋅g⋅mol−1

n=70.13⋅g⋅mol^−1/(12.011+1.00794×2)⋅g⋅mol−1=5

And so....

{CH2}×5=C5H10

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