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化学 高校生

解答の、表の、①の状態での質量の合計のところで、質量の合計に空気の重さが含まれているのですが、なぜなのか分かりません。これはつまり人間が空気を吸ったぶん体重が増えるということですか?回答よろしくお願いしますm(_ _)m

■気体 119 54 液体の分子量■ ある蒸発しやすい液体の分子量を測定するために、 次の実験を 行った。 ① アルミ箔, フラスコ, 輪ゴムの質量をはかると 145.00gであった。 ② フラスコに 5.0mLの液体を入れた。 ③ 図のようにフラスコの口をアルミ箔と輪ゴムを用いてふたをし, 輪ゴム 針で小さな穴を開け, 熱水中に深く浸した。 ④液体が全部蒸発したことを確かめ、 熱水の温度をはかると87℃ 熱- であった。 ⑤フラスコを取り出し, 室温まで放冷したのちに外側の水をよく ふき取り質量をはかると, 146.17g であった。 ⑥ フラスコに水を満たし, その容量をはかると450mLであった。 ⑦ 実験時の大気圧は1.0×105 Paであった。 水 アルミ箔 フラスコ 室温 (25℃) まで放冷したとき、試料の蒸気圧に相当する分の空気が排除されている ことに留意し,次の値を求めよ。ただし、25℃での液体試料の飽和蒸気圧は XX10Pa, 25℃の空気の密度は1.1g/L とし, 液体の体積は無視してよい。 )熱水中に浸したときのフラスコ内の試料蒸気の質量[g] (2) 試料の分子量 [近畿大 改] 45

解決済み 回答数: 1
英語 高校生

間違っているところがあったら教えていただきたいです🙇🏻‍♀️

6 CD Chacal the 1 Choose the best answer to fill in the blanks. (1) (1) ( ) the editor of this magazine? ①Do you know is who 3 Who do you know is 2 Do you know who is Who is do you know (関西 (2) Please keep your eyes ( 1 close 2 closing ) until I tell you to open them. 3 closed 4 to close (京 (3) One of the twins lives in Tokyo, but ( ) lives in New York. ①another 2 other 3 the other 4 the others (4) There is not much hope ( 1 as 2 how ) they are still alive. 3 that 4 which (5) The language ( ①speaking (6) He ( 1 should ) in the province is Arabic. 3 spoke 2 speak ) be sick. I just saw him playing soccer. ③ can't ④spoken (月 (7) It will not be long 1 before 2 may ) we meet again. 3 above 2 on ④ won't SET ④during (8) Tom may not have studied ( 2 as hard ①enough hard (9) There are many books worth ( ) to pass the entrance examination. 3 hard enough 4 hard as ) more than once. 3 reading to be read 1 read 2 to read (10) James found ( ①him ) difficult to write down foreign names. 2 himself 3 it ④them (11) They suggested that he ( ) to the meeting. 1 come 2 comes (3) came 4 had come (12) Hurry up! Our bus is leaving ( ) a few minutes. I till 2 on 3 during 4 in (13) You will miss the train ( ) you walk more quickly. 1 if (14)( How about 2 without 3 unless ) take the train instead of the bus? It's faster. ②Let's 3 Why don't ④but for ④Why not

解決済み 回答数: 1
英語 高校生

この選択であっているのかそしてなぜほかの答えではダメなのか教えていただきたいです。

Education Text Completion Select the best answer to complete the text. Then choose the letter (A), (B), (C), or (D). Questions 9-12 refer to the following web page. Part 5 Incomplete Sentences Select the best answer to complete the sentence. Then choose the letter (A), (B), (C), or (D). 1. Before ------- Japan, all international students must get a student visa. (A) enter (B) entering (C) to enter (D) have entered ------- in psychology in university, but now he is an artist. 2. He A majored (A) hers (B) studied (B) she 3. Mr. Toda helped Cathy describe 4. It has been 15 years since I graduated (A) on (B) in 5. Library accounts are automatically created, so no ------- LVU Campus Tours The students of Las Vegas University are at the heart of the LVU experience, 9. tour our campus, meet LVU students, and have them guide you on a campus tour. You can enjoy a candid conversation with 10. students, ask them about classes, housing, Las Vegas, online student support, and more. 11. Doing this will hopefully give you the best idea of what LVU life would be like for you. The two-hour campus tour allows you to experience firsthand everything you need to know. Click here for your guided tour. (C) researched (D) took research plan. (C) her (D) herself ------- university. (C) at (D) from registration is 9. (A) so 10. (A) now (B) then (B) modern (C) initials (D) initialed 12. (C) also (C) latest (D) and (D) current necessary. (A) initially (B) initial 6. I'm happy to have this ------- to study with such great professors. (A) notice (B) benefit (C) factor 7. Statistics is a ------- class for second-year students. (A) require (B) required (C) requiring 8. The geologists plan to study the soil from the mountains Dopportunity (D) requires ------- Canberra. 11. A We will match you with a guide based on your interests and goals. (B) Feel free to ask about other universities found in the area. (C) Take the time to learn more about the city of Las Vegas online. (D) Please let us know the kind of person you were in high school. 12. (A) arrange (B) to arrange Carranging (D) arrangement (A) out (B) next (C) onto (D) around

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