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50 grame zinc reactioneaza cu acid sulfuric. calculati cantitatea de acid sulfuric consumata

Răspuns :

Zn + H2SO4 => ZnSO4 + H2

65g Zn...............98g H2SO4
50g Zn................x=75,384g H2SO4

n=m/M=75,384/98=0,76923 moli H2SO4

MH2SO4=98g/mol

MZn=65g/mol