ms1=200g c1=20%
ms2=200g c2=10%
ma3=200g
Concentratie finala= ?
c=mdx100/ms=> md1=c1xms1/100=20x200/100=40g => md1=40g
=> md2=csxms2/100=10x200/100=20g => md1=20g
ms finala=ms1+ms2+ma3=200g+200g+200g=600g => ms finala =600g
md final= md1+md2=40g+20g=60g => md final=60g
c finala = md finalx100/ms finala = 60gx100/600g = 6000g/600g= 10 =>
=> c finala=10%
Sper ca te-am ajutat !