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mr (masa roztworu) = 300g
Cp (stężenie procentowe) = 5%
Szukane :
ms (masa soli) = ?
* Obliczam masę soli (ms) zawartą w tym roztworze.
Cp = ms * 100% : mr / *mr
Cp * mr = ms * 100% / : 100%
ms = Cp * mr : 100% = 5% * 300g : 100% = 15g soli