Do 200 g, 15 % roztworu dodano 100 g rozpuszczalnika. Jakie jeste stężenie procentowe roztworu ?
pls na jutro ! ;D
1 roztwor:
ms= 15% x 200g= 15/100 x 200= 30g
mr=200g
2 roztwor:
msII=30g
mrII=200g+100g=300g
CpII= msII/mrII x 100%=30/300 x 100%= 0,1 x 100%=10%
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1 roztwor:
ms= 15% x 200g= 15/100 x 200= 30g
mr=200g
2 roztwor:
msII=30g
mrII=200g+100g=300g
CpII= msII/mrII x 100%=30/300 x 100%= 0,1 x 100%=10%