Dobrý den, Nepomohl by mi někdo prosím s řešením těchto úkolu ? Děkuji moc.
1. Kolik gramů NaCl je obsaženo v 200 ml roztoku, jehož c=0, 1 mol.l-1 ?
2. Jaka je molarní koncentrace kyseliny sírove, je-li v 1000 ml roztoku rozpušteno 49,04 gramů kyseliny
3. Jaka je molarní koncentrace roztoku NaOH, který vznikl rozpuštěním 10 g NaOH v 125 cm3 vody
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