C2H6O - C2H5OH - етанол;
Mr(C2H5OH) = 46;
ω(O) = N(O) * Ar(O) * 100% / Mr(C2H5OH) = 1 * 16 * 100% / 46 = 34,78%.
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C2H6O - C2H5OH - етанол;
Mr(C2H5OH) = 46;
ω(O) = N(O) * Ar(O) * 100% / Mr(C2H5OH) = 1 * 16 * 100% / 46 = 34,78%.