Ответ:
W=n*Ar*100/Mr Ar(P)=31
Mr(P2O5)=2*31+5*16=62+80=142 W(P)-2*31*100% /142=43,7%
W(0)=100-43,7=56,3%
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Ответ:
W=n*Ar*100/Mr Ar(P)=31
Mr(P2O5)=2*31+5*16=62+80=142 W(P)-2*31*100% /142=43,7%
W(0)=100-43,7=56,3%