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Chemie

Kolik gramů NaCl obsahuje 200 cm3 roztoku o látkové koncentra-ci c(NaCl) = 0,171 mol dm-3? Ar(Na) = 23, Ar(Cl) = 35

Kolik gramů NaCl obsahuje 200 cm³ roztoku o látkové koncentra-ci c(NaCl) = 0,171 mol dm^-3? Ar(Na) = 23, Ar(Cl) = 35