Wikipedia
Search Wikipedia:

October 2017
MonTueWedThuFriSatSun
      1
2345678
9101112131415
16171819202122
23242526272829
3031     

Calendar Calendar

Free Hit Counter

Caffeine is a psychoactive....

View previous topic View next topic Go down

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

Posts : 1
Join date : 2012-06-18

View user profile

Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum