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化学 高校生

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本 避・塩恒の指示薬と電員平和 次の文を読み、下の各問いに答えよ。 ノグ 和穫に用いちれる折示末はそのあくが生い層。または juices、語 指示薬HA。 塩基江指示薬 BOH が。 それぞれ, 1 価の酸。 !価の手玉であるとょ1 久天楽の坦区平衛は次の①②式で表される。 0 HA = Hr+Aー ee BOH = BT+OH- ……@ 滴定中の溶液のpH に応じて, ①の場合には, 酸性溶液は( ア )の色を示し 坦 修深流は( イィ )の公示す。 一 ⑧の場合には 令性潤六は( ウ )の色な| 奄基條浴流は( エ )の色を示す。 ぐり(7) ()にあてはまるものを。 ①②式中の分子またはイオンから志べ。 (②) 酸人指示HA に対する電有平和①の平和定数。 を。HA。HT、A- の濃度[| 唱本 [A-]を用いて表せ。 (⑬) 平衛 る溶流のpH を 。[HA], [A-]を用いて表せ。 3 プロモチモールプルーは, 酸型指示薬でもあり, その変 到は pH6.0一7.6 である. 変色城の中間値を。HA の濃度と A- の濃度が等しくなる点と して, 平衡定数 K。のぉ およその値を有効数字 1 桁で求めよ。 ただし、 100ゆ=1.26 とする。 | (5) ある琶型間示壮 HA の電放定数を =1.0X10-9moL とする。[HA]/IA-1の が0.1ー10 となる pH の範囲をこの指示楽の変色城とするとき、 変色域の pH をホゃ| MI

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英語 高校生

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(1) Itwas ahot summer day in New York。 The Johns family decided to go to the Bu Zoo. Janet and Kevin Johns had two children: Thomas. 3 years old, and Sally, 6 month Thomas tiked watching all the animals, but he especially loved the gorillas. The Johns went straight to the gorilla exhibit。 There were six adult gorillas and a three month-old baby gorila. In the Brooklyn Zoo, the animals are not mm cages. They arei 1arge areas dug out of the ground. These areas have fences around them so the animal cannot get out. () Watching the gorillas, Sally started to cry. Kevin took her from Janet。 and Janet lookex in her bag for a bottle ofjuice. In those few seconds, Thomas got ost. (WV) Amwoman saw Thomas chimbing up the fence and shouted, “Stop him!' 4 tallman eached up to get him, but it was too late。 Thomas fll down the other side of the 人once. 革e fel 18 fset onto the hard concrete foor._ア_(①with ②bleeding ③he @sel ⑨lay ⑥his head). Janet and Kevin shouted for help.。 語の2 (V) Before the zoo workers arrived, a gorilla went over to Thomas. It was Momo, an eght- Year-old mother gorilla。 She had her baby gorila on her back。 Wth one armrshe picked p the ittle boy。 Then she walked over to a door carrying the bo very careftly Them che put Thomas dowrn so a zo worker could get him. (VO 。 Thomas as badly hurt and bad to go to the hospital but ater a few daya he was beter () 問1 本文に関する以下の文の空楓に入るものとして最も適切なものを選び、 記号で答えなさい。 1 nllas were. 3 1) According to the paragraph (HI),the gori の pon the fenee cindugareas ぶ out ofthe exhibit a_in cages (②) According to the paragraph (皿), Thomas got ]ost @ @ @6 5@ @ 。 as Keyin and Janet started to cry @ ② while Kevin and Janet Wa8 taking care of Sally < when a bottle ofjuice Wa8 spilt by Kevin and Janet @) According to the paragraph (V), a female gorila の held "Phomae apd brought him to a door ゃcarried Thomas to a door with both other arme took Thomas in order to cimb up to door

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