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Chemie

Kolik gramů KCl obsahuje 0,400 dm3 roztoku o látkové koncent- raci c(KCl) = 0,402 mol dm-3? Ar(K) = 39, Ar(Cl) = 35

Kolik gramů KCl obsahuje 0,400 dm³ roztoku o látkové koncent- raci c(KCl) = 0,402 mol dm^-3? Ar(K) = 39, Ar(Cl) = 35