zmieszano 200g. roztworu 4% i 400g. roztworu 2%. oblicz stężenie roztworu po zmiesaniu
ms=Cp*mr/100%
ms=4%*200g/100%
ms=8g
ms=2%*400g/100%
ms=8g+8g=16g
mr=200g+400g=600g
Cp=ms*100%/mr
Cp=16g*100%/600g
Cp≈2,67%
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ms=Cp*mr/100%
ms=4%*200g/100%
ms=8g
ms=Cp*mr/100%
ms=2%*400g/100%
ms=8g
ms=8g+8g=16g
mr=200g+400g=600g
Cp=ms*100%/mr
Cp=16g*100%/600g
Cp≈2,67%