Ответ:
1. Мr(P₂O₅) = 2*Ar(P) + 5*Ar(O) = 2 * 31 + 5 * 16 = 142
Мr(Al₂O₃) = 2*Ar(Al) + 3*Ar(O) = 2 * 27 + 3 * 16 = 102
2. ω (O) = 2*Ar(O)/Mr(SO₂) = 2*16/64 = 0.5
или 50%
Объяснение:
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Ответ:
1. Мr(P₂O₅) = 2*Ar(P) + 5*Ar(O) = 2 * 31 + 5 * 16 = 142
Мr(Al₂O₃) = 2*Ar(Al) + 3*Ar(O) = 2 * 27 + 3 * 16 = 102
2. ω (O) = 2*Ar(O)/Mr(SO₂) = 2*16/64 = 0.5
или 50%
Объяснение: