stechiometria wzory
0 3 Datenblatt guest3307966
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d=m/v
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d-gestosc m-masa v-objetosc
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m=n*M
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n-liczba moli(mol) M-masa molowa(g/mol)
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n=N/Na
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N-liczba at, jon, czast Na-stala avogadra
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