Grade

Type of questions

Chemistry Senior High

この問題がわからないです💦けん化価とヨウ素価学校で習ってなくてそもそも式の仕組みが分からないので基本から教えていただけると嬉しいです♡

200 〈油脂の構造> 文中の(A)~(C)に最も適合するものをそれぞれ(ア) ~ (オ)から選べ。 H=1.0,C=12, 0=16,K=39, I=127 油脂に水酸化カリウム水溶液を加えて熱すると,油脂はけん化されて, 脂肪酸のカリ ウム塩とグリセリン (1,2,3-プロパントリオール) が生じる。 けん化価とは, 油脂1gを完全にけん化するのに必要な水酸化カリウムの質量 (mg 油脂に含まれる不飽和脂肪酸のC=C結合にヨウ素を完全に付加させたとき,油脂100g に付加するヨウ素の質量(g単位)の数値をいう。 単位, 式量 KOH=56) の数値をいい, 油脂の分子量の目安となる。 また, ヨウ素価とは, 平均分子量(A)の油脂 W のけん化価は191, ヨウ素価は174である。このとき,油 脂1分子中に含まれる C=C結合の数は平均 (B) 個である。 油脂 Wが一種類の不飽 和脂肪酸だけで構成されている場合,この不飽和脂肪酸の分子式は(C) である。 (オ) 960 A:(ア) 794 (イ) 800 (ウ) 878 (エ) 902 B: (7) 2 (イ) 3 (ウ) 6 (エ) 9 (オ) 12 C : (ア) C16H28O2 (イ) C16H30O2 (ウ) C18H30O2 (エ) C18H32O2 (オ) C18H 34 O2 [17 鹿児島大〕 [ 18 早稲田大〕

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English Senior High

間違ってるとこあったら教えてください

英語 7 次の英文を読み、1から4の ちから一つずつ選びなさい。 解答番号は 内に入れるのに最も適当なものを,それぞれ①~④のう 27 O others. 24 Nagisa was a nurse who was working in Zimbabwe, a country in Africa. One day, she got an email from her old high school homeroom teacher, Mr. Tamai. He wanted to ask was hesitant at first because she always had a fear of public speaking, she felt this would be a Nagisa to give his students a talk about what she was doing in Zimbabwe. Although Nagisa good chance to tell students about the joy of working abroad and helping people in need. The next time Nagisa went back to Japan, she visited Mr. Tamai's high school to speak with his students. She was very nervous, but to her relief, the students seemed to be very interested in her story. She talked about her job, her reasons for working in Zimbabwe, and both some good and bad things about working there. She shared her passion for helping After the talk, one of the students came to talk to Nagisa. He said, "I would like to work abroad and help people in the future like you, but I don't know what kind of job I would be able to do. Do you have any advice for me?" Nagisa said, "I think, doing something you like is the key. Keep doing it, and doors will open for you." (Ten years later) One sunny day, a group of Japanese farmers visited the village where Nagisa was living. They came to teach local people how to grow plants and vegetables. People in the village were eager to learn from them. Then, the youngest member of the farmers' group came to talk to Nagisa and said, "Hi, do you remember me? You gave a talk at my school ten years. ago. At that time, I liked growing plants and vegetables, but I didn't know how to use that to help others. You told me to keep doing what I liked and that has really opened doors for me to do what I'm doing now. Thank you." Hearing his words, Nagisa recognized who the young man was. She was surprised and pleased that her talk from ten years before was able to make a difference in this young man's life. 1 Nagisa was 24 a high school teacher. 2 afraid of public speaking. 3 scared of living abroad. 4 a doctor in Zimbabwe. 4 2 One thing Nagisa told Mr. Tamai's students was why she chose to work in Zimbabwe. how she learned a new language. 3 when she went to a high school in Africa. 4 what she did to impress local people. 3 One of the students said he wanted G (2) (3 to be a kind nurse like Nagisa. to teach Japanese culture in Africa. to open doors for other people. to help people overseas. 26 3 25 4 Ten years after her talk, Nagisa 27 made an appointment to meet one of her old friends in Africa. 2 became a farmer and taught local people how to grow vegetables. met one of Mr. Tamai's students again. 4 4 gave a small talk in her high school again.

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