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Chemie

Jaká je látková koncentrace NaOH (Mr = 40,0) v 10% roztoku hydroxidu sodného o hustotě 1,109 kg × dm-3?

Jaká je látková koncentrace NaOH (Mr = 40,0) v 10% roztoku hydroxidu sodného o hustotě 1,109 kg × dm^-3?