Didn't I do this for you a couple days ago?
http://www.jiskha.com/display.cgi?id=1479076160
Elemental analysis of a compound, once used as a pesticide, was found to be 74.2% carbon, 8.64% hydrogen, and 17.2% nitrogen.
This compound has a molecular mass of 162.23g/mol, what is the molecular formula for this compound?
3 answers
That was part A this is part B the actual question is different
Hatdog Alindog 5%