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gram cukru.Jakie jest stężenie procentowe otrzymanego roztworu?
cp=5%
mr=5kg=5000g
ms=5%*5000g=250g
Cp=ms/mr*100%
ms=250g+100g=350g
mr=5000g+100g=5100g
cp=350g/5100g*100%=6,86 %