Zawartość soli w wodzie morskiej wynosi 3,5%. Ile kg soli zostanie po całkowitym odparowaniu 200 kg wody morskiej.?
ms- ? (x)
cp = ms x100% / mr
cp x mr = ms x 100%
ms = cp x mr / 100%
ms = 3,5 % x 200 kg /1005
ms= 7 kg
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ms- ? (x)
cp = ms x100% / mr
cp x mr = ms x 100%
ms = cp x mr / 100%
ms = 3,5 % x 200 kg /1005
ms= 7 kg