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gadukina
@gadukina
July 2022
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Определите массу оксида алюминия Al2O3, полученного при окислении 54 грамма алюминия.
(Al+O2=Al2O3)
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vova0243
N(Al)=54/27=2 моль 4Al+3O2=2Al2O3 nAl:nAl2O3=2:1 n(Al2O3)=1мольm m(Al2O3)=1*102=102 г
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gadukina
Спасибо большое!!
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