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Koľko litrov roztoku kys. sírovej ( c= 0,2 mol/l ) potrebujeme na vyzrážanie BaSO4 z 500 ml Ba( NO3)2 (c=0,3 mol/l)?
Dobrý deň, vedel by mi prosím niekto poradiť, ako mám robiť analýzu týchto viet. V prílohe posielam fotku. V druhej vete som aj začala niečo, ale neviem, či to má vyzerať takto, ďakujem veľmi pekne…
Vodič tvaru dvoch kruhových závitov s polomermi veľké R= 5 cm je uložený v magnetickom poli s indukciou B= 0.6 T kolmo na smer indukcie. Aké je elektromagnetické napätie, ktoré sa v tomto vodiči…
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