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化学 高校生

黄色の硫酸イオンは硫酸ナトリウムの硫酸を奪ってったんですか? Ba(OH)2をいれたときの容器内のイオンと塩をおしえてほしいです。

論述 156. アンモニアの発生と中和■次の文を読み、 下の各問いに有効数字2桁で答えよ。 塩化アンモニウムと硝酸ナトリウムとの混合物 4.25gを水に溶かして300mLの溶液 10 をつくった。この溶液を30.0mLとり 水酸化ナトリウムとともに加熱し,発生する 気体をすべて 50.0mL の 希硫酸に吸収させた。 気体を吸収させたのちの溶液中に 残った硫酸を中和するために, メチルオレンジを指示薬として, 0.100mol/Lの水酸 化ナトリウム水溶液を少しずつ加えたところ 25.0mL を要した。 また, 滴定後の溶液に 水酸化バリウム水溶液を十分に加えると, 700mgの沈殿が生じた。 (1) 下線部①の操作で使用する器具の名称を記せ。 また、この器具が蒸留水でぬれて いる場合, すぐに用いるにはどうすればよいか。 20字以内で述べよ。 下線部②の気体が発生するときにおこる変化を化学反応式で記せ。 (3) 下線部④の指示薬を使ったときに見られる色の変化を記せ。 また, この指示薬を 使う理由を述べよ。 (4) 下線部③の希硫酸のモル濃度を求めよ。 (5) はじめの混合物に含まれていた塩化アンモニウムの物質量は何mol か。 (6) はじめの混合物に含まれていた硝酸ナトリウムの質量百分率は何%か。 中紀 県立大 My Conne IRENEL CH th

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英語 高校生

佐賀大学(平成31年度)の大門3の要約問題について質問です。 添削お願いします。

3 次の英文を読んで、その要旨を300字程度の日本語で書きなさい。句読点も字数に 含めるものとする。(30点) Learning to interpret what others mean is complex. Because we learn early to interpret meanings by the form of expression a person uses, there is much room for misunderstanding. This may lead us to make value judgments and become convinced that a speaker is insincere, dishonest, or disrespectful when we misread the intentions or the significance of a message within a social setting. One example of the need to use and understand socially appropriate messages is in the determination of when a speaker has said no. In many languages and societies, people usually don't say no directly. Instead, they have less direct ways of expressing refusal. The nonnative speaker needs to recognize the ways in which this is done. For example, in Hispanic cultures it is considered inappropriate for servants to say no directly to their employers. Instead, the social norm requires the servant to reply to a request from an employer with the form manana. Although a literal translation of manana is “tomorrow," the most frequently intended meaning for it in this situation is simply “no." But, this is a polite no, since the request has not been refused directly, just postponed. A nonnative employer will wait a long time for service if he or she relies on the literal meaning of the word manana. Still another example of misinterpretation has to do with who may initiate a conversation. In some Asian languages, such as Chinese, Japanese, or Korean, children do not usually initiate conversations with adults and do not speak unless spoken to. In contrast, American children are free, and even encouraged, to initiate conversations with adults. Similarly, whenever there is a perceived difference in status for example, between student and teacher-the inferior usually does not

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英語 高校生

赤い線の部分の訳し方がわかりません

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