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mr = 500g
Cp = 4%
Szukane
ms = ?
ms = (4% * 500g) / 100%
ms = 20g
W tym roztworze powinno być rozpuszczone 20g cukru
mr=500g
ms=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms=4%*500g/100%
ms=20g
Odp:Należy rozpuścić 20g cukru.