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English Senior High

答えと解説お願いします!!

子習日 above a nice restaurant. The student ate only once a day before his evening studies (10) )A A Wise Judgment 名判決 Vdados just 1 Many years ago in Japan, a hungry student lived 1n a small room that woo having ーa small *?rice ball. However, . he did not feel he was alone when he was 1) meals in his room. He could smell the delicious food from the restaurant, and b。 restaurant with many could also imagine that he was eating the delicious food at the 5 people he never met. He really enjoyed his dinner time. 2 One day the restaurant owner came to learnwhat the student was doing, and 2) so he asked him for some money. The owner did not want him to smell the food from the restaurant for free. But the student was so poor that he did not have much money at all. So the owner called the police and asked them to *3 °put the student into 10 prison. 3 Soon there was a *4 "court case. *Judge Nomura was very famous because he was so clever. The owner explained the problem with the student. He explained how much money the restaurant needed for all the people who worked there. The student 3) started to worry because he was so poor. Judge Nomura thought for a minute and 15 then began to talk. 4 “It is clear that you must give the owner some money for received from the restaurant," he said to the student. "Do you have any money with what you have 4) vOu2" The restaurant owner smiled. The student found a few coins in his bag and 20 took them out. The judge told him to 6throw them up and catch them. The student * looked sad, but did so. 5) *7made a small sound. “Good!" said Judge The coins Nomura. “The sound of money is enough for the smell of food." I 300 wordsI

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Chemistry Senior High

3枚目の紫で引いた0.1molがどこから来たのか教えてください

82. 〈溶解熱と中和熱の測定〉 実験1, 2に関する文を読み, (1)~ (5)に答えよ。ただし, 実験は断熱容器内で行われ, すべての水溶液の比熱は 4.2J/(g·K), 密度は1.0g/cm° とする。なお, (2)~(5)は解答を 有効数字2桁で記せ。 H=1.0, O=16.0, Na=23.0 実験1 固体の水酸化ナトリウム 2.0gを水48gに加え, すばやくかき混ぜて, 完全に溶解させた。このときの液温 の変化を測定したところ, 右図のような結果が得られた。 実験2 実験 1で調製した水酸化ナトリウム水溶液の温度 が一定になった時点で, 同じ温度の2.0mol/L 塩酸 50mL を混合し,すばやくかき混ぜた。このとき,混合 A。 B 20ビ 2 水溶液の温度は, 塩酸を加える前より 6.7C上昇した。 時間 (min) (1) 実験1において, 水酸化ナトリウムの溶解が瞬間的に終了し, 周囲への熱の放冷が なかったとみなせるときの水溶液の最高温度はA~Cのどれか。 (2)(1)の温度が30°℃ であったとして, 実験1で発生した熱量は何 Jか。 (3) 実験1において, 固体の水酸化ナトリウムの水への溶解熱は何 J/mol か。 (4) 実験2において, 塩酸と水酸化ナトリウム水溶液の中和反応における中和熱は何 kJ/mol か。 (5) 実験1と 2 の結果を用いて, 固体の水酸化ナトリウム 4.0gを2.0mol/L の塩酸 50mLに溶解したとき発生する熱量 [kJ] を求めよ。 (18 日本女子大) 温度C)

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