教えてください🙇🏻

170 [中和滴定] 食酢中の酢酸の濃度を調べるため,次の実験 ①〜⑤を行った。 check! これについて下の問いに答えよ。 計算値は四捨五入して有効数字3桁で示せ。 実験 : ① 水酸化ナトリウム約 0.4gを水に溶かして100mLの水溶液をつくった。 . ② シュウ酸二水和物 ((COOH)22H2O) を正確にはかり取り, メスフラス コを用いて 0.0500mol/Lのシュウ酸水溶液を100mLつくった。 ③ 実験 ②でつくったシュウ酸水溶液10.0mL をホールピペットにより正確 にはかり取り, 実験①でつくった水酸化ナトリウム水溶液で中和滴定した ところ, 12.5mL を要した。 ④ 食酢 10.0mL をホールピペットにより正確にはかり取り 容量100mLの メスフラスコに入れ, 標線まで水を加え, よく振り混ぜた。 ⑤ 実験 ④でつくった溶液 10.0mLをホールピペットにより正確にはかり取 実験①でつくった水酸化ナトリウム水溶液で中和滴定したところ, 8.50mLを要した。 (1)実験②ではシュウ酸二水和物が何g必要か。 度を決定する。シュウ酸を用いると濃度が正確に調製できるのはなぜか。 難 (2) 実験②でつくったシュウ酸水溶液を用いて水酸化ナトリウム水溶液の濃 簡潔に記せ。 (3)この滴定で用いた水酸化ナトリウム水溶液のモル濃度を求めよ。 (4)薄めた食酢中の酢酸のモル濃度を求めよ。 [170] 質量パーセ ント濃度 溶質の質量 (5)食酢中の酢酸の濃度を質量パーセント濃度で答えよ。ただし,食酢の密 度は100g/mLとし、食酢中の酸はすべて酢酸であると仮定する。 (6)0.100mol/Lの酢酸水溶液 500mLを, 0.100mol/Lの水酸化ナトリウム水 溶液で中和する場合, 滴定曲線として最も適切なものを次の図(a)~(f)の中 から選び, 記号で答えよ。 溶液の質量 -x 100 141 (a) PH 141 (b) 12 10- 8. PH 6. PH 4- 2. 141208642 (c) 0 5 10 15 20 0 0 5 10 15 20 0 5 10 15 20 滴下量 〔mL] 滴下量 〔mL〕 12 208642 +0 0 14] (e) 14] (f) 滴下量〔ml〕 12. 12 [10] [[[]] 8. PH 8 6 PH 6 4 2. 2. 0+ 5 10 15 20 0 5 10 15 20 0 0 滴下量 〔mL〕 滴下量 〔mL] 14] (d) 1411086420 PH 0 5 10 15 20 滴下量 〔mL〕

伝送量の計算方法がわかりません 公式とかってあるんですか？ 解説に書いてある伝送の速度のと時間とデータ量の関係のところの式に当てはめてもうまく計算できません

伝送す 2〈伝送量〉 伝送速度が1Gbps の LAN において, 1分間に500 MB のファイルを きる。 大に JO 何個伝送できるか求めよ。 ただし, 1M=10°, 1G=10° とし, 伝送効率やファイ ルの送受信処理にかかる時間は考慮しない。 2 時間: バイ 意す 自 にな

これは単に質量を求めるのですか？それとも圧力ですか？見分け方も教えてください🙇‍♀️

(5) 右のように直方体の物体を床に置いたとき, 面を垂直に押す力 0.5m 1500 0.3m、 Check! 2 1.5kg 床

わかる方お願いします🙇🏻💦💦💦 矢印から下の部分を訳して、T/F教えてください🙇🏻🙇🏻🙇🏻 Fは間違えている箇所を訂正お願いします🙇🏻🙇🏻💦💦

15 [1-58] Caleb Autry: I originally wanted to be an engineer, but I realized quickly that it 3( passion for music and I was just scared to pursue it. 35 minismic tuods onilaat ho teiled o ). I knew I had a Ruffini: That changed last February, when his math and science- 20 focused High School, A NEW BEAT MORNING PHILADELPHIA TEENAGERS PRODUCE MUSIC WITH OWN RECORD LABEL George Washington Carver, became the test site for the Philadelphia School District's new music production www.program.obule belesuper test site 実験校 bobmemoby 64 50 Bo R 40

中学文法で添削してほしいです🙇🏻‍♀️

I which do you like better, summer or winter? 8 14611 A. I like winter better. I was born in winter, so I am -good at playing winter sports. Also, my mother gives me a lot of birthday presents. 2 Q. What did you eat today and how was it? aum.airt evol atne 8 A. Today, I ate cooked fish. I often go to the river. to fish (fishes) with my father. Also, I like cooking So I sometimes cook dishes. for my family.. What is your dream? 8 | A. My dream is teacher who work in school. My mother on is a teacher. I was often taught her, so I want to be a like her. 16 開3年後 (音読した回数) 1 2 3 4 5 6 7 8 9 10

この英文の文法を教えて欲しいです。 (関係代名詞、不定詞など) 英語が苦手なのでどのような使い方をするのかなど教えてもらえるとありがたいです。

onference ánf(a)rans] im [éim] articipant artisǝpǝnt] sappointment isapintment] opose [prǝpouz] allenging elindsin] me to do mto do on one's appointment ... at all stantial stanf(ǝ)!] road [réilroud] instream instri:m] t is how ... e hope that... an impact on 3 In How did they come to publish their own paper? 2002, there was a study conference held by CHETNA an NGO that aims to help the children in slums. Among the participants, there were some children from a slum in South Delhi. They were shocked to learn that adults had no idea about what really goes on in a slum! To their disappointment, the children also learned that the media did not cover the issue at all! So they decided to join a project proposed by CHETNA. It was a G1 challenging plan to start a newspaper to let people know about the terrible conditions of kids living in the slums. G1 That is how Balaknama started. The children chose this name in the hope that their paper would serve as "the voice of children." In fact, their articles have sometimes had a substantial impact on society. In 15 2015, a shocking article appeared in Balaknama. It was about slum kids forced by police officers to remove bodies after railroad accidents. The mainstream media reported on the article and the government finally acted and stopped the police. 20 nsion Check id the children learn at a study conference held by CHETNA? roject did CHETNA propose? d the children name the newspaper Balaknama?

1問目to tell the truthじゃなくてto be honestと答えるのは間違いですか

不定詞を含 を独立不定詞と呼ぶ。 CHECK to begin with (まず最初に) to be brief (簡潔に言えば) to be sure (確かに) so to speak (いわば to be frank (率直に言って) strange to say (奇妙な話だが) 独立不定詞 to say nothing of ... (･･･は言うまでもなく) to make matters worse (さらに悪いことに) to be honest(正直に言うと) to tell the truth (本当のことを言うと) to say the least (控えめに言っても not to say...(…とは言えないまでも、 needless to say(言うまでもなく) not to mention...…は言うまでもなく など To be frank (with you), your idea is not practical (率直に言って, きみの考えは現実的ではないよ) To be honest, I don't like vegetables. (正直に言うと, 私は野菜が好きではない) 良品 To tell the truth, I didn't want to write this letter (実を言うと,私はこの手紙を書きたくなかったのです) 日本語の意味に合うように, 空所に不定詞を含む適切な表現を入れなさい。 1) 実を言うと、 私はその仕事ができるかどうかわからない。 , I don't know if I can do the job. 2) 率直に言って、 あなたの考えは間違っている。 " your idea is wrong. 3) 私たちは道に迷った。 さらに悪いことに, 日が暮れてきた。 We got lost. And Ja, it was getting dark. p.234

分詞の日本語訳の問題です。教えてください。

review 「レビュー 口コミ」 1) Not deciding which dictionary to buy, I checked the reviews*. 2) Surrounded by the sea, Japan has a mild climate. 3) Having lived in Australia, Kana knows a lot about Australian food. 4) Strictly speaking, spiders are not insects. 5) Taking everything into consideration, our school festival was a success.

英語の問題です。 教えて欲しいです🙇‍♀️

(2) I had my teeth 1 check 1( )に入る最も適切な語句を ① ~ ④から選びなさい。 (1) He went on speaking as if she ( 1 can't 2 hasn't ) there. Son 3 wouldn't ) by a dentist this morning. ult niles 3 checking wahiwon (青山学院大 ) ④weren't pomibinand (岩手医科大) 24 to check 2 checked (3) You should not keep any pets ( 1 after 2 unless ) you can take good care of them. 3 when (中央大) ④which 1 as 2 in ) all be correct. ②anytime (6) If the weather ( ①must have been (4) This town will change ( ) another ten years. (5) Those may not ( 1 absolute ) fine yesterday, I would have done the laundry. 2 is (7) Studying takes up a lot of my time during the week, ( ) little time for hobbies. (芝浦工業大) since 3 of (國學院大) 3 everything ④necessarily (関西学院大 ) ③ wasn't 4 had been (皇學館大) ①1 has left (8) Have you heard the rumors ( 1 that 2 what leaves leaving 4 left ) Susan has returned to this town? ③ which (麗澤大) ④ who 1 by (9) What was found in this experiment is ( 2 for (10)( ) what to say, she remained silent. ) great importance to researchers. 3 in (立命館大) 4 of (愛知工業大) 1 Not knowing 2 Being not knowing ③No knowing ④Knowing no (11) I tried to ( 1 have 2 make ) her to tell me what happened last night. 3 get (十文字学園女子大) 4 let How gimon and (12) Do what you like, as ( 1 far 2 much B in 1 in 2 with bnat am ) as you leave me alone. 3 long (13) This tool is dangerous. Please read the instructions ( (14) If I hadn't drunk so much last night, I ( 1 feel (15) I wish you 1 attend (16) If I ( 1 were ) 2 will feel ) the party yesterday. 2 were attending ) much better than I do right now. ③ would feel ③ have attended (中京大) 4 would have felt (目白大) ④had attended ) in your situation, I would be more careful about what you post on social media. (フェリス女学院大) 4 many ) care. (聖隷クリストファー大) at ④take gwol 3 will be (南山大) ④would be

(2)のア、イ、ウ、教えてください！お願いします🙇🏻‍♀️

19 [金属結晶と密度] 次の問いに答えよ。 ただし, V2 check!=1.41, v3=1.73, 3.14,1nm=10-m, アボガ ドロ定数 NA = 6.0×1023/mol とする。 (1) 鉄の結晶構造は体心立方格子である。 また, 単位 格子の一辺の長さは0.29nm である。 +0. (ア) 鉄原子の原子半径は何 nm か。 有効数字2桁で 答えよ。 B (イ) 結晶の密度は何g/cm3か。 有効数字2桁で答 えよ。 (ウ) 鉄原子が球であるとすると, 充填率は何%か。 小数第一位まで求めよ。 (2) ある金属の結晶構造は, 単位格子が図1のようで あり,一辺の長さは 0.405 nm, 結晶の密度は 2.7 g/cm3である。 図