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Chemie

Roztok síranu draselného má látkovou koncentraci 0,4 mol × dm-3. V jakém objemu takového roztoku je obsažen 1 mmol draselných iontů?

Roztok síranu draselného má látkovou koncentraci 0,4 mol × dm^-3. V jakém objemu takového roztoku je obsažen 1 mmol draselných iontů?