Question
Sat May 12, 2012 By:
 

Adinic acid, a compound used in making nylon,is 44.8% oxygen. There are 4 oxygen atoms per molecule. What is the nolecular mass of hexamethylendiamine

Expert Reply
Mon May 14, 2012
Mass percentage = mass of an atom  X100 / molecular mass
             
44.8     =  16 x 4 x 100 / M
44.8 = 6400 /M
M = 6400 / 44.8
M= 142.8
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