Предмет: Химия, автор: antoha98

найдите массовую долю оксигена в углекислом газе CO2

Ответы

Автор ответа: cherevaty

0

$Mr(CO_2)=Ar(C)+2Ar(O)=12+32=44\w(O)=frac{2Ar(O)}{Mr(C)_2)}=frac{32}{44}=0,73$

або 73%

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