4P+5O2=2P2O5
n P=7.75/31=0.25 моль
n P2O5=0.25/2=0.125моль
m P2O5=0.125*142=17.75 г
n O2=(4/5)*0.25=0.2 моль
V O2=0.2*22.4=4.48 л
4P+5O2=2P2O5
n P=7.75/31=0.25 моль
n P2O5=0.25/2=0.125моль
m P2O5=0.125*142=17.75 г
n O2=(4/5)*0.25=0.2 моль
V O2=0.2*22.4=4.48 л