為什麼[A(org)]=n[An(org)]成立 (第三張圖equation 7.9) 感謝

Experiment 7 Experiment 7 The partition of Organic acid between Water and Organic solvent Objectives Understand the partition of a solute between two immiscible solvents. Introduction A chemical analysis that is performed primarily with the aid of volumetric glassware (e.g., pipets, burets, volumetric flasks) is called a volumetric analysis. For a volumetric analysis procedure, a known quantity or a carefully measured amount of one substance reacts with a to-be-determined amount of another substance with the reaction occurring in aqueous solution. The volumes of all solutions are carefully measured with volumetric glassware. The known amount of the substance for an analysis is generally measured and available in two ways: 1. As a primary standard: An accurate mass (and thus, moles) of a solid substance is measured on a balance, dissolved in water, and then reacted with the substance being analyzed. 2. As a standard solution: A measured number of moles of substance is present in a measured volume of solution - a solution of known concentration, generally expressed as the molar concentration (or molarity) of the substance. A measured volume of the standard solution then reacts with the substance being analyzed. The reaction of the known substance with the substance to be analyzed, occurring in aqueous solution, is generally conducted by a titration procedure. The titration procedure required a buret to dispense a liquid, called the titrant, into a flask containing the analyte. A reaction is complete when stoichiometric amounts of the reacting substances are combined. In a titration this is the stoichiometric point. In this experiment the stoichiometric point for the acid-base titration is detected using a phenolphthalein indicator. Phenolphthalein is colorless in an acidic solution but pink in a basic solution. The point in the titration at which the phenolphthalein changes color is called the endpoint of the indicator. Indicators are selected so that the stoichiometric point in the titration coincides (at approximately the same pH) with the endpoint of the indicator.

不好意思想請問一下對等連接詞左右名詞的單複數一定要相等嗎？

etic events. prep. Athletes spend D. many hours each day practicing skills and improving teamwork under the _ (4) of a coach or a sports instructor. They view videotapes not only to critique their own performances and (5) but also to learn their opponents' tendencies and weaknesses to goin

第18題 題目說要放形容詞所以是closed 但close本身不是也是形容詞嗎？ 記得講義有以下句子 leave the door open

第16.至20.題為題組 The platypus is an egg-laying mammal endemic to Eastern Australia, 16. of Tasmania. It has brown fur all over its body and a wide, flat tail like a beaver's. The platypus' nose looks like a duck's bill, but its nose can 17. many things that other animals' noses cannot. With electroreception, the platypus can feel the power of other animals and keep its eyes 18. while swimming and hunting, using only its hearing and touch. Owing to its unusual appearance, the platypus was mistakenly 19. a fake by the first European scientists in the late eighteenth century, who encountered it for the first time and thought it was made of several animals sewn together. Furthermore, platypuses are difficult to see in the wild since they don't like areas with people. 20. the number of platypuses is declining, they are not under any immediate threat. (D) inclusive (D) reverse 16. (A) includes (B) including (C) included 17. (A) inquire (B) detect (C) support BA 1 (A) close (B) closed a (C) closing (D) to close 19. (A) called on (B) revealed to (C) viewed as (D) resorted to 20. (A) While (B) Only if (C) Because (D) So long as 三、文意選填(占10分) 說明:第21.題至第30題,每題一個空格,請依文意在文章後所提供的(A)到(J)選項中分別選出 最適當者,填入空格中。每題1分。 第21.至30.題為題組 Trans fat is unsaturated fat which is altered by partial hydrogenation. The process of partial

想請問為什麼第三題要選C

111. 綜合測驗:15% Imagine eating a steak and discovering that the meat is not from an animal. Instead, it was made by scientists! Though this may sound like sci-fi, many companies these days are transforming animal stem cells 1. products that combine to form a type of meat. It's meat," and it's even supported by famous people like Bill Gates. known as The main reason for their support is probably that producing meat in this way holds several advantages 3. with more traditional methods. First, conventional farms or factories don't usually have the livestock's best interests 4. Many animals are poorly treated, and we can prevent them from suffering by to fake meat. Second, the raising of animals for food has caused great harm to the environment. In fact, experts say that emissions could be lowered by up to 96 percent if we stopped eating animals! 5. A(A) into 14 (B) with (C) for (D) at

有人知道有事相煩的相是甚麼意思嗎，可以舉個類似例子嗎

看不懂31。謝謝你的幫忙🥺，我要更認真讀英文🤣🤣🤣🤣

Questions 30-34 are based on the information provided in the following web page and en 7+14 Qwww.icmss.org.tw/conference BO The Fifth International Conference on Management and Social Sciences (ICMSS) Call for Papers the fields of Communication & Society, Politics & Law, Banking & Finance, and The ICMSS, now in its fifth year, is a platform for scholars to discuss research in Marketing & Management. email account: papers@icmss.org.tw. Only upon payment of the registration fee colleges or research institutes are invited to submit original papers to the following The Fifth ICMSS will take place in Taipei, Taiwan. Researchers at universities, All submissions will be peer reviewed by three competent referees. Authors of (US$110) will submissions be reviewed for inclusion at this year's conference. accepted papers may be required to amend their work as advised by the review panel. Revised papers must be submitted by the deadline below. Important dates Deadline for paper submission: July 17/1 根据建議. 修改後,再寄一次 Notification of acceptance: August 20 8/20 是否被接受的通知 Deadline for submission of revised papers: September 20 119/20 Conference dates: November 10-12 Notes 11/10-12 For format guidelines, please click here. Papers that do not conform to the requirements will be returned for modification. f you have questions, please write to Judy Hall at jh@icmss.org.tw. R From: To: R R R R Dennis Burton <dburton@univmail.edu> Judy Hall <jh@icmss.org.tw> Subject: Questions about the 5th ICMSS Dear Ms. Hall, Thank you for your prompt response. I have paid the registration fee as per your instructions. However, in my previous email, I also asked whether submission of multiple articles is accepted. I hope you can clarify this as soon as possible. Both articles I plan to submit are co-authored with my colleague Professor R. Jones. Although the papers both concern the role of central banks in managing the money supply, they are written from different perspectives. I believe that they will be of great interest to the target audience of this conference. In addition, there still appears to be a problem with the link on the website. I have tried the web browser you suggested, but I still received a "Cannot find expecte page" notification. Thank you for your assistance. I look forward to hearing from you. Best regards, Dennis Burton amend (v.) 11 the law · panel In.) review panel

問問4.5

People from different countries view time differently. Take Mongolians, for example. They seasonally move from place to place, searching blofresh grass for their animals. Due to the extreme weather and the rough ground, it takes time to move around. The more quickly circumstances change, a2gintheir trips become. So, they adopt flexible schedules instead of strict ones. They often arrange appointments "before noon" or "at night" rather than set a certain time to meet. 3 they arrive within the specified period of time, they are considered "on time." (A) However, this is very different from the practice in Japan, 4 ba person is regarded as being "late" if he or she shows up even one minute past the appointed time. This practice dates back to Japan's industrial revolution. At that time, factory employers demanded that employees time for shifts in order to meet tight production schedules. Apparently, people from different cultures view time in their own ways. Without a doubt, times may change, but culture runs deep. 5 on B1. (A) to 2. (A) what difficult ) (B) for uoy Venom (C) into sirgo2\div (D) with \gnol \ st (C) the more difficult (D) the much difficult (B) how difficult 3. (A) Until bed liv sd \b (B) No matter island (C) In spite of \ weiter (D) As long as A 4. (A) where (B) which (C) what 5. (A) punch in (B) punched in (C) were punching ((D) when)外出 (D) had punched

問問3-5

People from different countries view time differently. Take Mongolians, for example. They fresh grass for their animals. Due to the seasonally move from place to place, searching 1 extreme weather and the rough ground, it takes time to move around. The more quickly circumstances change, 2 their trips become. So, they adopt flexible schedules instead of strict ones. They often arrange appointments "before noon" or "at night" rather than set a certain time to meet. 3 they arrive within the specified period of time, they are considered "on time." 4 5 on a person is regarded as being However, this is very different from the practice in Japan, "late" if he or she shows up even one minute past the appointed time. This practice dates back to Japan's industrial revolution. At that time, factory employers demanded that employees time for shifts in order to meet tight production schedules. Apparently, people from different cultures view time in their own ways. Without a doubt, times may change, but culture runs deep. 1. (A) to (B) for (C) into (D) with 2. (A) what difficult (B) how difficult 3. (A) Until (C) the more difficult (D) the much difficult (B) No matter (B) which (C) In spite of (D) As long as X (C) what (D) when 5. (A) punch in (B) punched in (C) were punching (D) had punched A 4. (A) where

看了解析還是沒辦法理解 請問這題怎麼解

樂樂將墨水以濾紙層析法分析,她將墨水滴在起始線上,將濾紙放入展開 液中,在展開液上升至停止線時終止層析。待濾紙乾燥後,觀察發現甲、 乙、丙三種色素之相對位置如附圖;已知:Rf值(Retention factor value)=色素上升距離/展開液上升距離 Rf值與色素及展開液的特性有 關,可做鑑定之用。下列敘述何者錯誤? 停止線- 層析 起始線- 甲乙 ○(A)甲色素的 Rf 值大於 0.5 (B)甲色素與展開液間的吸附力最大 (C) 以水當展開液時,丙色素的 Rf 會最大 (D)此實驗中物質的分離為物理變化。 解析:(C)以水當展開液時,丙色素距離起始線最近,丙色素的 Rf 會最 小。

第六題、第二題和第九題 第九題but l haven't 的haven't 是動詞還是完成式

Our dad Japan already, and he il be back in a few days. (A) has gone to (C) has arrive in raining soon. (A) 6. It B (B) has been to (D) has been visiting for several days. I hope it will stop (A) has rain (C) is raining (B) has rained (D) has been rain (A) 7. I have been a math teacher (A) for twenty years (B) twenty years ago (C) in twenty years (D) of twenty years 8 Selina for that company since 2008