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2014-03-06T17:38:40+02:00
% Ca = (masa Ca/masa molara compus)*100=(40/56)*100=71,429%
%O = (masa O/masa molara compus)*100=(16/56)*100=28,571%
sau %O=100-%Ca = 28,571%

FORMULA ESTE VALABILA PT ORICE COMPUS

%C=(12/16)*100=75%
%H=(4/16)*100=25%

%Mg=(24/95)*100=25,263%
%Cl=(2*35,5/95)*100=74,737%