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Chemie

Jaká je látková koncentrace KCl obsahuje-li 0,400 dm3 roztoku 12 gramů KCl? Ar(K) = 39, Ar(Cl) = 35

Jaká je látková koncentrace KCl obsahuje-li 0,400 dm³ roztoku 12 gramů KCl? Ar(K) = 39, Ar(Cl) = 35