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Caffeine is a psychoactive....

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Caffeine is a psychoactive....

Post  maira.015 on Mon Jun 18, 2012 6:46 pm

Caffeine is a psychoactive stimulant drug found in coffe. The percent composition in mass, os those substance is 49.5% C; 5.2% H: 28.8% N: and 16.5% O
a) WRITE CAFFEINES EMPERICAL FORMULA
b) How many molecules of caffeine are present in 350g sample of this substance?

please help me guys Sad

maira.015

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