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Chemie

Hmotnostní koncentrace roztoku Na2SO4 je 25 g/l. Jaká je látková koncentrace tohoto roztoku?(M = 142,0 g/mol)

Hmotnostní koncentrace roztoku Na₂SO₄je 25 g/l. Jaká je látková koncentrace tohoto roztoku?(M = 142,0 g/mol)