Ответ:
Объяснение:
Mr(BaCO3) = Ar(Ba) + Ar(C) + Ar(O) * 3 = 137 + 12 + 16 * 3 = 197
w(C) = Ar(C) * n/Mr(BaCO3) * 100% = 12/197 * 100% = 6,09%
w(О) = Ar(О) * n/Mr(BaCO3) * 100% = 16 * 3/197 * 100% = 24,36%
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Ответ:
Объяснение:
Mr(BaCO3) = Ar(Ba) + Ar(C) + Ar(O) * 3 = 137 + 12 + 16 * 3 = 197
w(C) = Ar(C) * n/Mr(BaCO3) * 100% = 12/197 * 100% = 6,09%
w(О) = Ar(О) * n/Mr(BaCO3) * 100% = 16 * 3/197 * 100% = 24,36%