Grade

Subject

Type of questions

Chemistry Undergraduate

サイエンス社の分析化学より、テスト勉強で解説が無く理解出来ずで焦ってます…誰か助けてくださいー(><)

2 Pd は3M HCI 水溶液からリン酸トリブチルへ PdCl2 として抽出され、その 分配比は 2.3 である。この抽出について, 以下の問に答えよ、 (1) 5.0× 10M PdCl2 を含む3M HCI水溶液 100 mL をリン酸トリプチル 200mL と振とうすると,何%のP4CI2 が抽出されるか? (2)(1)の水相をリン酸トリブチル 40mL で5回抽出すると,合計何%の PdCla が抽出されるか? 100 0000円)C(CH: COOF CCOO円 000円 1000H COR COOH 00 CHCCOOH 3 ベンゼンに混入したアニリン(B) を溶媒抽出法で分離する方法に関して, 次 の間に答えよ。 (1) アニリニウムイオン(HB*)の pK。は 4.60, アニリンのベンゼン-水間 の分配定数 Kaは10.0である、 アニリンの分配比 Dを [H$O*] の関数とし て式で表せ、この式に基づいて, log D の pH 依存性のグラフを描け、 ただ し,アニリニウムイオンは 100%水相に分配すると仮定する。 (2) ベンゼンと等量の水相を用いて, アニリンを99%以上水相に抽出するた めには,水相のpHをどのように調節すべきか? 4 8-ヒドロキシキノリンに比べて次の誘導体のキレート抽出試薬としての特徴を 述べよ。 B000000 SOJ 100000日 CR-CHORCOOR CJO OR CACOOB (1) 2-メチル-8-ヒドロキシキノリン (2) 5,7-ジクロロ-8-ヒドロキシキノリン 5 イオン交換法により3価ランタノイドイオンを相互分離する方法を調べよ。 6 一般的な pH 計では電位の読み取り精度は, 1~0.1 mVである. これは 25 C で pHに直すといくらになるか、 7一般的な pH計による pH 測定では, 正確さは ±0.02 程度が限界である。 で 原因について調べよ。 円 00CCH CHC 0 OCCHONC O ン

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TOEIC・English Undergraduate

これ読んだんですけど、自分は世界史を理解してなかったので分からなくて翻訳アプリ使ったんですけどそれでも分からなかったので分かる方できれば解読お願いします┏●

Denmark in World War II お んれ By Hannah Arendt Hannab Arendt (1906-1975) was a political scientist! and pbilosopber born in Hanover, Germany. Wben Hitler came to power, sbe was forced to leave Germany and came to the United States in 1940. Sbe continued ber academic career by lecturing and teacbing at arious colleges, including The New Scbool for Social Researcb in New York City. Among the many books sbe urote were Eichmann in Jerusalem, On Revolution, and The Origins of Totalitarianism. Editor's Insert During the Second World War. the Germans invaded Denmark in April, 1940. In the beginning of her essay, Hannah Arendt explains that of the four countries almost completely immune to anti-Semitism- Denmark, Sweden, Italy, and Bulgaria Denmark challenged its German masters directly. As soon as the German authorities talked about forcing Jews to wear the yellow badge,' the Danes replied that all Danish citizens, including the King, would be wearing it the next day if the policy were carried out. In addition, all Danish government officials threatened 舌は the German authorities with their immediate resignation if the Germans started to implement any anti-Jewish actions. The following excerpt from Eicbmann in Jerusatem shows how the Danes sabotaged the German plan to carry out the mass extermination of the Jews. only 2タカ人の What happened then was truly amazing; compared with what took place in other European countries, everything went topsy-turvey. In August, ー after the German offensive in Russia had failed, the Afrika Korns 1943 had surrendered in Tunisia, and the Allies had invaded Italy すgovernment canceled its 1940 agreement with Germany which had permitted German troops the right to pass through the country. Thereupon. the Danish workers decided that they could help a bit in hurrying things そのうえに up: riots broke out in Danish shipyards, where the dock workers refused to repair German ships and then went on strike. The German militarv commander proclaimed a state of emergency and imposed martial la and Himmler thought this was the right moment to tackle the Te the Swedish す。 (continued on next page) themselves as Jews secret police), and overseer of the concentration camps

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TOEIC・English Undergraduate

ミドリの蛍光ペンで引いている部分がなぜそうなるのか分からないので教えてほしいです💦

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