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NaOHとNa2CO3とを含む試料液10mLをホールピペットで正確に量りとり(※)、フェノールフタレイン試液2滴を加えた。これを前回実験2-1で用意した0.1mol/L HClを加えて滴定し、ちょうど無色になったときまでに費した0.1mol/L HClの 有機化合物の分離はセンター頻出です。ここでミスをしてしまっては、他の受験生と差がついてしまいます。今回は芳香族化合物の分離の解説です。それぞれの操作の意味を理解することで、絶対に忘れない状態にしてしまいましょう Tell your teacher, s/he probably thinks this is obsolete information correct, unfortunately. -=-=-=- SO2 + NaOH → NaHSO3 then NaHSO3 + NaOH → Na2SO3 Cách thực hiện: cho NaOH tác dụng với NaHSO3 | Phản ứng trao đổi | Phản ứng trung hoà It has been 40 - 50 years since this was justifiable, maybe more. 特性 化学式 NaOH モル質量 39.99714 g mol −1 外観 白色固体 密度 2.13 g/cm 3, 固体 融点 318 C, 591 K, 604 F 沸点 1388 C, 1661 K, 2530 F 水への溶解度 1110 g / L (20 C) メタノールへの溶解度 238 g / L エタ … Cân bằng phương trình hóa học naoh (natri hidroxit) nahso3 (Natri bisulfit) = h2o (nước) na2so3 (natri sulfit) .

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