黄色いマーカーのところなのですが、なんでNaHCO3とだけ反応するんですか?

解説 (b) フェノールフタレインのみが適している。 (c) メチルオレンジとフェノールフタレインの両方が適している。 (d) メチルオレンジとフェノールフタレインのどちらも不適である。 応用例題 31 NaOH と Na2CO の混合溶液の中和滴定 炭酸ナトリウムと水酸化ナトリウムの混合水溶液がある。 この溶液 25.0mLに指示 応用 159 薬としてフェノールフタレイン (変色域: pH=8.0~9.8) を加え, 塩酸標準溶液(濃度 0.100mol/L) で滴定したところ, 滴定値が13.5mL で赤色が消えた。 次にメチルオレン ジ (変色域:pH=3.1~4.4) を指示薬として加えて滴定したところ、溶液の色が黄色か ら赤色に変化するのに、さらに11.5mL 塩酸標準溶液を必要とした。 (1) フェノールフタレインの変色域までに起こる2つの反応の反応式をそれぞれ書け。 (2) フェノールフタレインの赤色が消えてからメチルオレンジの変色域までに起こる 反応の反応式を書けにさ (3) 溶液中の炭酸ナトリウムと水酸化ナトリウムのモル濃度を有効数字2桁で求めよ。 塩酸 HCI と炭酸ナトリウム Na2CO3 の中和反応 ● ●エクセル 第1 中和点 Na2CO3 + HCI → NaHCO3 + NaCl 第2中和点 NaHCO3 + HCI → NaCl + H2O +CO2 (1) フェノールフタレインの変色域までに, NaOH + HCI → NaCl + H2O Na2CO3 + HCI → NaHCO3 + NaCl の2つの反応が起こる。 ･･･反応 A ･･･反応 B ①二段階で中和反応 起こり, 反応 A 完了してから反応 が起こる｡

黄色線の部分の構造について教えてください。

℗ Almost 2,000 times more particle pollution is produced by *tyre wear than is pumped out of the exhausts of modern cars, tests have shown. The tyre particles pollute air, SJE water and soil and contain a wide range of toxic organic compounds, including known carcinogens, the analysts say, suggesting tyre pollution could rapidly become a major issue for regulators. 60 2 Air pollution causes millions of early deaths a year globally. The requirement for better filters has meant particle emissions from tailpipes in developed countries are now much lower in new cars, with those in Europe far below the legal limit. However, the increasing weight of cars means more particles are being thrown off by tyres as they wear on the road. The tests also revealed that tyres produce more than one trillion ultrafine particles for each *kilometre driven, meaning particles smaller than 23 *nanometres. These are also emitted from exhausts and are (2 ) special concern to health professionals, as their size means they can enter organs via the bloodstream. Particles below 23 nm are hard to measure and are not currently regulated in either the EU or US.

青印以降の構造が分からないです。どこがどこにかかっている(修飾されている)などを教えて頂きたいです。また、元の文に戻すとどうなりますか？？(カンマの挿入があるのでカンマを使わずに表した時にどうなるか知りたいです。)

Raks 1 Almost 2,000 times more particle pollution is produced by *tyre wear than is pumped out of the exhausts of modern cars, tests have shown. The tyre particles pollute air, water and soil and contain a wide range of toxic organic compounds, including known carcinogens, the analysts say, suggesting tyre pollution could rapidly become a major issue for regulators.

一文目の構造が分からないです。接続語が無いのに急に「,tests have shown.」と来てるのは何故ですか？

℗ Almost 2,000 times more particle pollution is produced by *tyre wear than is pumped out of the exhausts of modern cars, tests have shown. The tyre particles pollute air, UPNO MESSAGS water and soil and contain a wide range of toxic organic compounds, including known carcinogens, the analysts say, suggesting tyre pollution could rapidly become a major issue for regulators.

BE smart grammarbookのレッスン11わかる方いますか？

いて説明する。 教科書 pp.7 き本がたくさんあえ すか) pp.200-2 る。会い 場合がある。 / timney .203-20 蛍した 由 2= 7 EXERCISES )内の語句を並べかえて意味の通る英文をつくり、全文を書きなさい。 1( (1) Do you have (talk / anything/about/to)? (2) That student's (communicate / ability / is / to) impressive. 不定詞② (形容詞用法 副詞用法) (3) Jim has (good friends / on / to / no / depend) in an emergency. (4) I don't have (her / to / the truth / the courage / tell).F ②2 日本語に合うように、( )に適語を入れなさい。 (1) 彼はテレビでサッカーの試合を見るために早起きをした。 He got up early ( ) ( (2) 私は学校に遅刻しないように急いだ。 I hurried in (261,6 ******* soin) be late for school. (3) 彼女はファッションモデルになるために, モデルスクールに通った。 She went to modeling school so (+) (+10))( (4) 彼女がひと休みをするために、私たちは立ち止まった。 STE- We stopped ( ) ( ) the soccer game on TV. ) (the) (m. ) a rest. 17 10 ) a fashion model. (1) 状況 会社の経営悪化に関し,かなり話し合ったが・･・。 There was (to / business / were / no / tell / way / how) could improve. .910M of baut (2) 状況 ある日のミーティングで,議長が開口一番に言ったのは･･･。 We have (to/about / a lot of topics / talk / in) today. TA b) ygged sd of A of 75 3③3 与えられた状況に合うように( )内の語句を並べかえ,全文を書きなさい。 ただし,不要な語 句が1つずつ含まれています。 MET Of AB (3) 状況 東京から横浜まで行くのに、忙しい私は普通列車ではなく･･･。 I used the Shinkansen (not/ waste / so / to / as / in) any time. alur oth bostagghnu of thin Mihei de 14THEOXOR JORG B 13F+ vidi + sus ad) STUDY thb bred duonilb HONRPALIO 4 [ ]内の語句を参考にして,~, …..に自由に語句を入れ, オリジナルの英文をつくりなさい。 AB althy go aniwa of anotogend ai il on ~1⑨ (1) 私は今日 ~すべき・･・ (事柄) がある。 [ have / to ] (NEXT+ [vit (2) 私は〜するために･･･(場所)へ行った。 [ go to ] ind ilusttib oot ai lood aint 19 53

なぜwhatはだめなんですか？

18 She expects me to clean the house in thirty minutes, that is impossible.<> 2 ( 3 that tans → 19 I have two sisters, (ode svo) are married. 000 both of that 2 both of them both what which looo lutrabos ei sieci

３つ質問があります ①青線の部分なんですが、これを書かないといけない理　　　　　　　　　　　　　　　　　　由はなんですか？いまいち分かってません　 ②赤線の部分の微分の変形が分かりません ③紫線の部分がどうやって出てきたかわかりません 質問多くてすいません。誰か教えて... 続きを読む

n 105 (1) すべての自然数nに対して, x≧0のときが成り立つことを n に関する数学的帰納法によって示せ。 (2) 関数f(x)=x^-lex について, 極限 lim f(x) を求めよ。 x→8 〔類 17 首都大東京〕

解説の色が濃くなっている同格のところで どうしてeveryのあとoneがくるんですか？ 代名詞の用法を最近やっていてよく分からないので教えて欲しいです

$ grisesqe bildug Li 940 9 Lisage sildu¶»] 1. V 命令文具体例 Imagine standing up (to give a speech (in front of an audience)).2 (While you are speaking), someone [in the room uses a clicker (to count your every every one of your ums and uhs. 3 (Once you finished), this person (loudly) announces how many of these have spoiled your presentation). This is the method [used by the Toastmasters public- stumble and hesitation) your every stumble and hesitation speaking club].5 (As part of the training), one person has the job of counting S the speaker's uhs. The club's measures may be extreme, but they reflect the 1 - V S V folk wisdom that ums and uhs are the mark of a nervous, ig 've

黄色いマーカーのところについて。 asの倒置が起こってると説明が書かれていたのですが、元の文に直すとどうなりますか？

plainly Dreaming is a universal phenomenon, though much of what we dream may be forgotten, and some few persons are able only rarely to remember their dreams on waking. The dream represents mental activity during sleep. For this reason the workings of the unconscious mind can be more p 5 seen here than anywhere else. Ordinarily the thoughts and wishes of the unconscious mind are unknown to us, though it contains the source of creative and instinctive energy. As the oldest part of the concept-forming apparatus, it makes liberal use of such primitive methods of representation as symbolism. In a very general way, the unconscious mind of present-day man may be 10 compared to the conscious mind of the caveman, and dreams often remind us of the picture writing of the caveman, where a relatively few simple pictures used as symbols told a detailed story of events. In addition, it is the function of a dream to express a wish, but since the wishes of the unconscious are often highly instinctive in nature, they would be 15 as disturbing to most modern persons as would the acts of a caveman in present-day society. Therefore, most dreams are disguised enough to conceal their true meaning from the dreamer. This is accomplished through the intervention of the conscience, a much more recently developed function of the brain. In psychoanalysis an effort to get the true meaning of the dream is 20 made by having the dreamer give all his thoughts and feelings about every element of the dream. These are then pieced together by the analyst, who uses his knowledge of the life history of the individual as a reference point. By this means, unconscious thoughts and wishes, as well as long-forgotten experiences, can be revealed so as to give the dreamer a much more complete understand- 25 ing of himself. Passage 35 Psychoanalysis ー語句と構文- 13. on waking = /17. As the oldest part of the concept-forming apparatus, it makes = それは概念を形成するための装置一式の中の一番古い部品と ・・・ 訳) / L.9. may be compared to 〜 = 〜になぞらえるこ 272 - ( CLOSE ときに目く とし 16 1027 性質を るだろ ある。 見た BO 17 わ

この問題の求め方を教えてください🙇🏻‍♀️

DD 163 次の図で、x,yの長さを求めよ。 ただし、 点Gは△ABCの重心とする。 (1) (2) EF//BC B D E C B E ·y. 6 A D G F +C