Oblicz zawartość procentową żelaza w Fe2S3
mFe2S3=2*55,85u+3*32,07u=111,7u+96,21u=207,91u
%Fe=111,7u/207,91u*100%≈53,73%
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mFe2S3=2*55,85u+3*32,07u=111,7u+96,21u=207,91u
%Fe=111,7u/207,91u*100%≈53,73%