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Đốt cháy hoàn toàn x mol este e chỉ chứa este cần dùng 3,5 x mol O2 thu được a mol CO2 và b mol H2O với a trừ b = x công thức phân tử của X là
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Đốt cháy hoàn toàn x mol este e chỉ chứa este cần dùng 3,5 x mol O2 thu được a mol CO2 và b mol H2O...
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