どうやったら前の式から赤の式になるのか分からないので教えてください🙇🏻‍♀️

例題1 弱酸である酢酸は水溶液中で一部が電離し、次のような電離平衡が成立する。 次の 問いに答えよ。 POMERAS CH3COOH CH3COO' + H+ 酢酸の電離定数K』 は 2.7×105mol/L, 2.71.6, log10 2.0=0.30 とする。 (1)0.10mol/L酢酸水溶液の電離度を求めよ。 (2)0.10mol/L酢酸水溶液のpHを小数第1位まで求めよ。 【解答】…........ (1) 酢酸の初濃度をc [mol/L] 電離度をαとすると, 電離平衡になったときの各成分のモ ル濃度は次の通りである。 CHCOONa CH3COOH > CH3COO + H* 電離前 C 変化量 OH-C -ca 電離平衡時 c ( 1-α) 0mol/L +ca ca 0mol/L + ca ca 酢酸の電離定数の式に,これらの平衡時の濃度を代入すると + Ka [CH3COO-] [H+] cax ca ca² 2 == = [CH3COOH] c (1-a) 1-a HOM 酢酸は弱酸なので,酸の濃度がよほど薄くない限り, 電離度 αは1に比べて非常に小さ く, 1-α≒1と近似できる。 10.HM Na Ka よってKa=ca2 0<a ≦1より, a = C Ka a=√ = 2.7×10-5 mol/L 0.10mol/L =√2.7×10= 1.6 × 10 - 2 (2) 水素イオン濃度 [H*] = ca=0.10mol/L × 1.6 × 10-2 = 1.6 × 10 -3 mol/L pH = -10g10 [H*] = -log10 (16 × 10 ) =4-4logio 2=2.80 10 答え (1) 1.6 × 10-2 (2)2.8

解説お願いします😢

これはもっと早くやるべきだった。 (6語) [done / earlier]

赤線の略、文法が分かりません。 数が多くてすみません💦

【3】 次の文章とグラフを読んで問いに答えなさい。 現実? ? ✓ ~したい? Today, the eating habits of Japanese people have changed. More people like to eat bread and pasta, They also enjoy a lot of different dishes from other countries more often. ? Japan import's a lot of "produce from foreign countries. 2177 Look at the graph. These five countries spend a lot of money to import produce from SR? other countries. Among them, Japan spends the most and spends about 30 “billion dollars more than the UK. Russia doesn't spend as much as Germany but spends about 2 billion 日本は30億 dollars more than Italy. アメリカより使ってる? Why does Japan import so much produce? There are many reasons for this. Let's think about two of the reasons. One reason is the change in the favorite foods of Japanese people. ①Dishes from foreign countries are ( a ) among Japanese people, but some things ( b ) to cook those dishes are not available in Japan. The "shortage of farmland is another reason. About 70% of land in Japan is not good as farmland, because the land is in the mountains and is (②) with tree. And on some parts of the land which is good as farmland, people have built houses, shops and so on. Can Japan always import a lot of produce? It is not ( 3 ) to this question. In some parts of the world. *natural disasters like floods and *livestock epidemics sometimes damage produce which Japan needs. 4 (1. thing 2. should 3. we 4. 5. remember 6. another 7. there). If world peace is broken, maybe it will be difficult for Japan to import things. 4 another. There is things we should vem *produce billion 101 shortage natural disasters livestock epidemics

(a)の問題なのですがなぜ2個しかできないのですか？ 3枚目のような構造はできませんか？

フルオロベンセン, アルアヒ 5.37 二置換ベンゼン環における芳香族求電子置換は,すでに環上に存在する二つの基 のどちらがより強い活性化基かによって支配される. 次の物質の求電子的塩素化の主生成 物の構造を書いて命名せよ. (a) m-ニトロフェノール (b) o-メチルフェノール (c) クロロニトロベンゼン

高2 正誤判定 誤りは 4 ですかね？

Advertising targets children as never before. These days $3 billion is, spent annually on advertising 3 that is directed at kids- more than 20 time the amount a decade ago. 4

英作文の添削お願いします。 テーマは「自動運転車の長所と短所について」です。 100点満点で点数も付けていただきたいです。

that There are advantages and disadvantages I think one of the advantages is people than Cats which we have to most that people think to using self-driving cars. it is more useful for many drive by ourselves. In general, the elders should. drive in order to avoid some accidents. However, they advantage of self-driving. can Cars. not go to anywhere they houp by taking In contrast, I think using Self-driving cars may lead to some accidents, which is one of the dis advantages. If the systems of self-driving cars are out of order • Traffic accidents may occur. Moreover, self-driving cars are more expensive Conventional cars, so buying self- driving cars Than may be hard for many people.

高2 正誤判定 誤りは 2 ですかね？

Just as consciousness is ever expanding, leading us to the aware- ness of an even larger system, so civility is an ever-expanding process. It is, but a small step from seeing other people as precious by virtue of the Creator 2 to seeing all creation as precious. The practice of civility inevitably leads us into larger systems, ecologi- cal consciousness, and a loving concern against the integrity of the whole. 3

書き換え 同じ意味になるような単語が何か教え欲しいです

(a) (b) ( How about taking a taxi to the hotel? hotel? )( ) you take a taxi to the

Sometime in the future - although no one quite knows when - your morning commute may look something like this: Open an app, summon a car ... Read More

CI₂、HCIはそれぞれ共有結合とイオン結合じゃないんですか。 (3)です。