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化学 高校生

これどういう計算で分子式出てるんですか?

60 称である。 この分子のペンゼン環の水素原子2個を、塩素原子2個 に置換した構造は全部で何種類考えられるか。 (0S 関西大) urel and rhod Just southerm plants, to find the pink biossoms (a relative of the mountain eed b small that these sccds the rhododendron? All belong to the Heath Family color in the spring to the boj 100 Mile Wilderness of Maink B to develop that it docs e usual way mselves by °226.〈オゾン分解) な。 Jowers zain laurel pipe, which grox June into Scptember (and som even into October), you should Lo for and stop to study ther areas. Although tl research to sugges in a symbiotic rel host, the plant has recognized as be, gaining its nourishme matter through osmo no chlorophyl (he gives plants their grei nerb rises from the soil -CoH C-O O-C2 CH3 H。 O B HO-C-CHBr-CHBr-C-O-CBr-CH2Br D CHs-C-CHs E CHirg O H H、 C=C C-OH HO-C O 41.1-4.48:5.1:2.57 7:8:4 16 O ※の 5.1 axy-looking stems as te flower nods back 53,8:4: 分子式も CHO。 NAOHを用いたエステ (2) Aの加水分解で, Cのナトリウム塩が得られたので, Cはカルボン 酸。しかも,Cは容易に分子内脱水されるので, シス形の二価カル ボン酸。CをR(COOH)2 とおくと,分子量が116より Rの部分の 式量は 26。よって, Rの部分構造は-CH3CH- と考えられるので, Cはマレイン酸である。 Aは酸性を示すことから, -COOH一つが 加水分解では,生じた ン酸は塩になり,水に 12 ad, giving the whol 解説(1) C: H:O= ance of a ae pipe. ridgeberry is an plant that warrant ds and knees to ol fancl 130S(C-HO)nル170, n は整数より n=1 いる。 R-COO-R' + NaOH → R-COON. 残っており, もう一つの-COOHはエステル化されていて, エステ + (CaH。O) この塩にHCIを加 酸として遊離する。 R-COONA + HCI wers, blooming gether to produl ※の4 R-CC よって、結果的! R-COO-R + ト ル結合を一つもつ。 CAH.O。 C マレイン酸 加水分解 he smal CHO4 + H2O A D ed to prn Dはふつう, -OHをもつ化合物であるが, Naと反応しないという rail passes

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英語 高校生

⑹赤本の模範解答 Jillian and Martin have decided to get married in June. They are both looking forward to their wedding day. だったのですが、2文目 例えば The... 続きを読む

英語 (80 分) 次の英文を読んで, 下記の英語による設問に答えなさい。 (*印の付いた語に は注があります。) I Martin looked quickly up the street and down to make sure that nobody was watching him, then he turned round, pushed open the door of the jeweller's shop and walked smartly up to the man who was standing behind the counter. He had been passing this shop for many months, because it was near Jillian's *flat. But he had only been looking in the window for a few days. Once he and Jillian had started to talk about getting married, he knew he ought to buy her an engagement ring. So he had been window-shopping in all the jewellers' shops he could find. But since he had seen one particular ring in the shop nearest Jillian's flat, he had not been thinking seriously about any others. This,/ Martin decided,/ was the ring for Jillian. And so he had gone into the shop to see it more( a ). “I've been looking at a lot of rings lately," he told the assistant, “but I'm sure this is the one for my young lady. Yes, she ought to like it," he said, looking at the price ticket. The man behind the counter smiled. “T'm sure she will, sir. But if the size isn't right, or if she wants to change it, please bring it back." At half past ten that night Martin found himself walking in the rain towards Jillian's flat. At his side were Jillian and Philippa, talking noisily. But Martin was (b ). He had turned the collar of his raincoat up and had pushed his hands deep into his pockets. In his right hand was a little square

未解決 回答数: 1