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QUESTION

# What is the empirical formula of caffeine?

"C"_4"H"_5"N"_2"O"

To find the empirical formula for caffeine we begin with the Molecular (true) Formula

C_8H_10N_4O_2

We can then reduce the Molecular Formula to the Empirical (simple) Formula by dividing each of the subscripts by the greatest common factor. In this case we divide by 2.

C_4H_5N_2O

This is the Empirical Formula.

I hope this was beneficial. SMARTERTEACHER