" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
m CO(NH2)2= 60u
mc = 60u*5 + 18u*20
mc = 660u
660u -100%
60u - x
x= 60u*100%/660u
x= 9,1 %