Ответ:
Mr(BaCO3)=137+12+48=197
Mr(MgSO3)=24+32+48=104
Mr(NaOH)= 23+16+1=40
Mr (BaCO3) = Ar(Ba) + Ar(C) + 3Ar(O) = 137 + 12 + 3 * 16 = 197
Mr (MgSO3) = Ar(Mg) + Ar(S) + 3Ar(O) = 24 + 32 + 3 * 16 = 104
Mr (NaOH) = Ar(Na) + Ar(O) + Ar(H) = 23 + 16 + 1 = 40
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Ответ:
Mr(BaCO3)=137+12+48=197
Mr(MgSO3)=24+32+48=104
Mr(NaOH)= 23+16+1=40
Mr (BaCO3) = Ar(Ba) + Ar(C) + 3Ar(O) = 137 + 12 + 3 * 16 = 197
Mr (MgSO3) = Ar(Mg) + Ar(S) + 3Ar(O) = 24 + 32 + 3 * 16 = 104
Mr (NaOH) = Ar(Na) + Ar(O) + Ar(H) = 23 + 16 + 1 = 40