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Chemie

Kolik gramů KCl (M = 74,5 g/mol) je třeba rozpustit, aby roztok obsahoval 0,5 mol iontů Cl-?

Kolik gramů KCl (M = 74,5 g/mol) je třeba rozpustit, aby roztok obsahoval 0,5 mol iontů Cl^-?