Mr (P2O5) = Ar(P)x2 + Ar(O)x5= 31x2 + 16x5 = 142 ω (P) = Ar(P) : Mr(P2O5) = 0, 43 или 43%
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Mr (P2O5) = Ar(P)x2 + Ar(O)x5= 31x2 + 16x5 = 142 ω (P) = Ar(P) : Mr(P2O5) = 0, 43 или 43%