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Cp₁=25%
mr₂=100g
Cp₂=10%
ms=?
Cp=ms*100%/mr
ms=Cp*mr/100%
ms₁=25*200/100=50g
ms₂=100*10/100=10g
ms=ms₁+ms₂
ms=50g+10g=60g
mr=mr₁+mr₂
mr=200+100=300g
Cp=60*100/300=20%
Z def. stęż. procent.
25g subst.----100g roztworu
xg subst.-----200g roztworu
x=50g subst.
ROZTWÓR II
Z def. stęż. procent.
10g subst.----100g roztworu
x=10g subst.
MIESZAM ROZTWORY
60g subst.-----300g roztworu
xg subst.------100g roztworu
x=20g subst
x=20%
Otrzymano roztwór 20%