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0,005=ms/300g
ms=1,5g
0,02=1,5+x/300+x
6+0,02x=1,5+x
4,5=0,98x
x=4,6g KI dodano
ms₁=300g*0,5%/100%=1,5g
Cp₂= 2%
2%=(1,5g+x)/(300g+x)*100%
0,02=(1,5+x)/(300+x)
6+0,02x=1,5+x
-0,98x=-4,5
x≈4,6g - dodano ok. 4,6g