Do 5 kg 5-procentowego roztworu cukru dodano 100 g cukru. Jakie jest stężenie procentowe otrzymanego roztworu?
mr=5000g
Cp=5%
ms=Cp*mr/100%
ms=5*5000/100
ms = 250g cukru
Dodano 100g cukru, więc
ms=350g
mr=5100g
Cp=ms*100%/mr
Cp=350*100/5100
Cp = 6,86%
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mr=5000g
Cp=5%
ms=Cp*mr/100%
ms=5*5000/100
ms = 250g cukru
Dodano 100g cukru, więc
ms=350g
mr=5100g
Cp=ms*100%/mr
Cp=350*100/5100
Cp = 6,86%