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化学 高校生

これは何という参考書か誰か分かりませんか?

1) 2KMnO。+5(COOH)。+3H,SO。 → 2MnSO。+ 10CO,+ 8H,O+K,SO。 (3) 3.69 mg/L (2) 182× 10mol/L 解(1) 過マンガン酸カリウムが酸化剤,シュウ酸が還元剤として lの電子をうばい, え,Fe**1mol は反 = MnO,,還元剤は はたらく。 「MnO。+8H"+ 5e → Mn*+ 4H,O 1(COOH),→ 2CO, + 2H* + 2e の×2+の×5よりe"を消去する。 2MnO,+ 6H*+5(COOH)。 両辺に2K*,3so,"を足すと 2KMnO,+5(COoOH)。+3H,SO。 2) CTT とおくと、酸化剤 2Mn* + 8H,O+ 10CO。 たe"の物質量より O円 一 2MnSO,+ 10CO, + 8H,O+K,SO。 2.0 X 1000 (2) 過マンガン酸カリウム水溶液の濃度を(mol/L)とすると 酸化剤がうばったe"の物質量 =還元剤が与えたe"の物質量 10 元剤(NO., Fe*)が与えたe"の物質 10.96 1000 ×5=500× 10× -×2 1000 x=1824 × 10 182× 10°mol/L (3) 操作3,4から有機物の酸化に使われた過マンガン酸カリ ウム水溶液の体積は(422-169)mLである。 ヨウ素満定 ヨウ素のヨウ化 溶液は褐色だが ンプンを加えると ーデンプン反応に。 はっきりとした時 す。還元剤を満下 すべてのヨウ素 しまうと、水溶量 え無色になる。こ ウ素のすべてがヨ オンに変化しヨ よって、有機物の酸化に必要な電子e~の物質量は、 422-169 1000 1,824× 10× ×5=2307 × 10-*mol 0,が酸化剤としてはたらくと 0,+ 4H*+ 4e一2H,0 となる。よって有機物を酸化するのに必要な O。 の物質量は 分の1がH,O。 r 2307× 10× ことになる。 COD の値は 1000 ?307×10*x-×320×10°× = 3691 mg/L 50

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英語 高校生

NEO 現代を読む standard ユニット7について、和訳をお願いします。

The Ancient Egyptians used a writing system called hieroglyphs*. It is a very good system Unit 7 |423 words / 中央大 - Language - of writing and was used in Egypt for almost four thousand years. (1)This means th hieroglyphs were being read and written for longer than the Roman alphabet has been. The. only stopped being used when Egypt became a Christian country and its people stopped 5 worshipping the Egyptian gods. |2 Centuries later, people were puzzled about how to read hieroglyphs. They thought that the hieroglyphs must be pictures of ideas and things and not an alphabet. There were about 750 hieroglyphic* symbols in use during most of the period of the ancient Egyptian civilization. This is far fewer than the 85,568 Chinese characters contained in the 1994 Zhonghua Zihai 10 Chinese dictionary. So, 750 hieroglyphs would seem to be too few to be pictures of all the things that humans need to describe%; but, at the same time, far too many to be an alphabet - only requires 26 letters to make all its words. 3 The answer is that hieroglyphs are ( 2a ) an alphabet ( 2b )a system of pictures. It is as if Japanese hiragana and kanji were combined in one system. The basic Egyptian alphabet consists 15 of twenty-four letters. Vowels* were not written. If this is done in English, it looks like this: (3)Ths hs n vwls'. This may seem difficult to read in a foreign language, but for native speakers, it is fairly easy (most people who send text messages between mobile phones take out vowels to make the words shorter). |4 In many ways, the Egyptian hieroglyphs are surprisingly similar to Japanese. Both systems 20 can be written in either vertical or horizontal lines and they can also be written either from right to left or left to right. With hieroglyphs, (ait is easy to tell whether they should be read from the right or left because many of them can be turned to face the direction they should be read from. Hieroglyphs, like Japanese kanji, were a form of art. Also like kanji, there are no ( 5a ) between the words-whidh are so helpful for understanding English. (sbIfwemissoutthespacesinEnglish, 25 itisratherdifficulttoread! Some words were written using the alphabet, some with just one hieroglyph.(6)'Sun', for example, was written with two circles, one inside the other. As with Japanese, it also means 'day'. 5 Hieroglyphs look to most people like an impossibly difficult system derstand. In truth, they are one of the most practical and beautiful writing systems ever created, combining 30 the advantages of kanji with the advantages of an alphabet system. hieroglyph:ヒエログリフ(古代工ジブトの聖刻文字) hieroglyphic : ヒエログリフの vowel:母音 18

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英語 高校生

NEO 現代を読む standard ユニット7について、和訳をお願いします。

1 The Ancient Egyptians used a writing system called hieroglyphs*. It is a very good system of writing and was used in Egypt for almost four thousand years. (1)This means that Unit 7 | 423 words / 中央大 - Language - hieroglyphs were being read and written for longer than the Roman alphabet has been. Th. only stopped being used when Egypt became a Christian country and its people stopper 5 worshipping the Egyptian gods. |2 Centuries later, people were puzzled about how to read hieroglyphs. They thought that the hieroglyphs must be pictures of ideas and things and not an alphabet. There were about 750 gyptian civilization. hieroglyphic* symbols in use during most of the period of the ancient This is far fewer than the 85,568 Chinese characters contained in the 1994 Zhonghua Zihai 10 Chinese dictionary. So, 750 hieroglyphs would seem to be too few to be pictures of all the things that humans need to describe; but, at the same time, far too many to be an alphabet - English only requires 26 letters to make all its words. 3 The answer is that hieroglyphs are ( 2a ) an alphabet ( 2b ) a system of pictures. It is as if Japanese hiragana and kanji were combined in one system. The basic Egyptian alphabet consists 15 of twenty-four letters. Vowels* were not written. If this is done in English, it looks like this: (3)Ths hs n vwls'. This may seem difficult to read in a foreign language, but for native speakers, it is fairly easy (most people who send text messages between mobile phones take out vowels to make the words shorter). In many ways, the Egyptian hieroglyphs are surprisingly similar to Japanese. Both systems 20 can be written in either vertical or horizontal lines and they can also be written either from right 4 to left or left to right. With hieroglyphs, (4)it is easy to tell whether they should be read from the right or left because many of them can be turned to face the direction they should be read from. Hieroglyphs, like Japanese kanji, were a form of art. Also like kanji, there are no ( 5a ) between the words - which are so helpful for understanding English. (5b)IfwemissoutthespacesinEnglish, 25 itisratherdifficulttoread! Some words were written using the alphabet, some with just one hieroglyph. (6YSun', for example, was written with two circles, one inside the other. Aswith Japanese, it also means 'day'. [5 Hieroglyphs look to most people like an impossibly difficult system tounderstand. In truth, they are one of the most practical and beautiful writing systems ever created, combining 30 the advantages of kanji with the advantages of an alphabet system. hieroglyph:ヒエログリフ(古代エジブトの聖刻文字) hieroglyphic: ヒエログリフの vowel:母音 18

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