Ответ:
Mr(Al(NO3)3) = 27 + 14×3 + (16×3)×3 = 213
Mr(P2O5) = 31×2 + 16×5 = 142
Mr(NO2) = 14 + 16×2 = 48
Mr(O2) = 16×2 = 32
Mr(K2CO3) = 39×2 + 12 + 16×3 = 138
Mr(Li3PO4) = 7×3 + 31 + 16×4 = 116
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Ответ:
Mr(Al(NO3)3) = 27 + 14×3 + (16×3)×3 = 213
Mr(P2O5) = 31×2 + 16×5 = 142
Mr(NO2) = 14 + 16×2 = 48
Mr(O2) = 16×2 = 32
Mr(K2CO3) = 39×2 + 12 + 16×3 = 138
Mr(Li3PO4) = 7×3 + 31 + 16×4 = 116