Обчисліть відносні формульні маси таких сполук

Mr(Al4С3)=

Mr(Mg3N2)=

Mr(K3PO4) =

Mr(Na2CO3) =

Mr(Na2S2O3) =

Mr(Li2SiO3) =

Mr(FeCl3)=

Ar(Al)=

Ar(C)=

Ar(Mg)=

Ar(N)=

Ar(K)=

Ar(P)=

Ar(O)=

Ar(Na)=

Ar(C)=

Ar(O)=

Ar(Na)=

Ar(S)=

Ar(O)=

Ar(Li)=

Ar(Si)=

Ar(O)=

Ar(Fe)=

Ar(CI)=
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