Mr(CaCO3) = Ar(Ca) + Ar(C) + 3Ar(O) = 40 + 12 + 3 * 16 = 100
w(C) = Ar(C) / Mr(CaCO3) = 12 / 100 = 0.12 = 12%
Ответ: 12%
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Mr(CaCO3) = Ar(Ca) + Ar(C) + 3Ar(O) = 40 + 12 + 3 * 16 = 100
w(C) = Ar(C) / Mr(CaCO3) = 12 / 100 = 0.12 = 12%
Ответ: 12%