Mᵣ(Na₂O) = 2Aᵣ(Na) + Aᵣ(O) = 2*23 + 16 = 46 + 16 = 62 а.е.м.
Mᵣ(BaCl₂) = Aᵣ(Ba) + 2Aᵣ(Cl) = 137 + 2*35,5 = 137 + 71 = 208 а.е.м.
Mᵣ(N₂) = 2Aᵣ(N) = 2*14 = 28 а.е.м.
Mᵣ(MgO) = Aᵣ(Mg) + Aᵣ(O) = 24 + 16 = 40 а.е.м.
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Mᵣ(Na₂O) = 2Aᵣ(Na) + Aᵣ(O) = 2*23 + 16 = 46 + 16 = 62 а.е.м.
Mᵣ(BaCl₂) = Aᵣ(Ba) + 2Aᵣ(Cl) = 137 + 2*35,5 = 137 + 71 = 208 а.е.м.
Mᵣ(N₂) = 2Aᵣ(N) = 2*14 = 28 а.е.м.
Mᵣ(MgO) = Aᵣ(Mg) + Aᵣ(O) = 24 + 16 = 40 а.е.м.