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化学 高校生

この問題の解説なんですが、Fは希塩酸を加えて酸性にして、ジエチルエーテルで抽出しているのでカルボキシ基を持っているってところがどうしてカルボキシ基を持つことがわかるのかがわかりません!

44 2018年度 化学(解答》 慶鷹義塾大一薬 NH M'=238 慶慮葬整大一薬 4 I. NH >問3. メチルレッ ルアニリンとのカ ト問4.変色域が フェノールフタレ ト問5.化合物 J 2.0-キシレンを 後,脱水すると初 7. ナフタレンュ >問6.Fはサ と,分子式は CuaH,NO, となるので 12×14+9+14+16x=239 1問 x=3 よって、分子式は CluHoNO3 である。 同様にして、化合物CとDは, 窒素原子を2個含むので, 酸素の数をッと すると,分子式は CiaHioN:O, となるので 景費 12×14+10+14×2+16y=238 0 y=2 08g よって、分子式は CiaHioNaO2 である。 化合物Eをジアゾ化した後に加熱すると化合物Fを生じているので, Eに はアミノ基,Fにはフェノール性ヒドロキシ基が存在している。また, 加 水分解後,Fは希塩酸を加えて酸性にして, ジエチルエーテルで抽出して いるので,カルボキシ基をもっている。したがって, Eにもカルボキシ基 がある。E, Fが結合して8員環をつくっているので, E, Fともにオル ト位に官能基をもっている。 よって, E, F (サリチル酸)は以下の通り。 鎮痛剤であるア ト間7.炭酸水 キシ基をもつ 0.8=x8.07 0 20

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英語 高校生

分からないので教えていただきたいです!

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英語 高校生

答えがわからず困っています。どなたか助けていただけないでしょうか?

「7 第 回| 241-280 | 回目 /40点 2回目 /40点 )に入れるのに最も適切なものを選びなさい。 guorh ロ 241 I didn't know ( ) go. Owhether to 2whether if I should のif to の that I (上智大) 2 242 Routinized learning is not an end ( )itself. w ① by の for 3 in のto (明治大) 2 243 Hil I don't remember( )you before. O meeting 2meeting by の to meet の to meet with (京都産業大) ロ 244 I didn't know one of the words Ken used. I should ( ) in the dictionary when I T1o get home. O look at it 2 look for it 3 look it back @look it up (慶鷹大) 1 2 245 Taro is now devoting all his time and energy ( ) English. O study らdto mnionivnos am ) patience with lazy students. O studying ) to studying ③to study (センター試験) 2 246 Even a strict teacher may have ( Oa little 2a few ③ little のfew (法政大) (大口 mind 2 247 I wasn't expecting to have a good time at the party, but ( 2I did it had OI was O it was ⑤it did (昭和大) w ate )my mother off at the airport when I met John. 2 248 Last night, I was ( O watching の looking 3going の seeing (南山大) )free. | 249 It is illegal to download most songs and movies ( @ for Oin 3 by の On (上智大) bluow woll: A 2 250 I found this tool. Does anyone know what it's ( 3 purpose の about uibsM (南山大) ① for ② use 2 251 Fortunately, ( ) of the three schoolchildren were hurt yesterday. Deither 2 neither O nobody の none (立命館大) 2 252 ( O Almost ) the work is supposed to be completed by this Wednesday. O Majority of ④Most のAlmost all (近畿大) 2 253 He is a popular student, known ( ) his wit. O by @ to ③ in の for 6 from (上智大)

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英語 高校生

少し量が多いですが今日中に回答していただけると幸いです。お願いします。

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解決済み 回答数: 1