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.

想要求解大學初會這一題 練習了很多次 但還是會錯 想請教解題的觀念 因我覺得自己是題目沒有懂

II. The trial balance of Drysdale Company shown below does not balance. DRYSDALE COMPANY Trial Balance June 30, 2025 Errors Correct Debit Credit Debit Credit Cash £2,600 £540 £2,600 Accounts Receivable £7,600 £540 7,600 Supplies 600 Equipment £8,300 + £700 8,300 Accounts Payable £9,766 - £252 -- £225 £9,766 Share Capital-Ordinary 1,952 Dividends £1,500+ £300+ £300 1,500 Service Revenue £15,200+ £279 15,200 Salaries and Wages Expense 3,800 Maintenance and Repairs Expense 1,600 Totals £26,000 £26,918 An examination of the ledger and journal reveals the following errors: 1. Each of the above listed accounts has a normal balance per the general ledger. 2. Cash of £170 received from a customer on account was debited to Cash £710 and credited to Accounts Receivable £710. 3. A dividend of £300 was posted as a credit to Dividends, £300 and credit to Cash £300. 4. A debit of £120 was not posted to Salaries and Wages Expense. 5. The purchase of equipment on account for £700 was recorded as a debit to Maintenance and Repairs Expense and a credit to Accounts Payable for £700. 6. Services were performed on account for a customer, £310, for which Accounts Receivable was debited £310 and Service Revenue was credited £31. 7. A payment on account for £225 was credited to Cash for £225 and credited to Accounts Payable for £252. (@4×10 + 合計1%,41%) 2

請教第一/第二題 謝謝

生化試題 問題題:共100分(必答題每題25分,選答題每題 10 分) 必答題: 將下列胺基酸(種類與數量)2個Lys、1個Arg、5個Ala、4個Ser、2個Met、2個Glu、2個Asp、2個Trp、2個Gly、3個 Leu 1. 隨機排列成一個含有 25 個胺基酸的胜肽鏈,依序從N→C 寫出其順序 (3字母縮寫)來處理冰計對自己言的肭键争一次下来,分析各x 2. 提供CNBr、Trypsin、Staphylococcal protease、參考胺基酸定序的步驟4→6,寫出各處理後所得的胜肽鏈片段 3. 利用以上片段重組,證明可以得到你隨機排列的正確胺基酸序列 二、若要從合成的DNA 來生產一段寡胜肽,其AA 順序為 Met-Arg-Ser-Glu-Trp-Ala-Gly-Lys-Leu-Phe,請用基因工程的手段,組合 mRNA 與DNA 的 正確核苷酸序列(記得要包含 stop codon) 選答題:以下7題中任選5題作答(不須抄題,寫題號即可)

想請問9-27和9-28的第二小題🙏

E 9-27 LO (12 Determining the Revaluation Surplus An independent appraiser determines that the fair value of a set of machines in Riga Company is labom 1200 €40,000 at the end of 2022. At that time, the carrying amount of these machines is €20,000 (cost: Sulev sdi gnt €70,000, accumulated depreciation: €50,000), with a useful life of 10 years, and residual value of ob vily €5,000. Shortly, Riga Company decides to apply revaluation to the machine. Help Riga Company to vino ziggs record the revaluation surplus. E 9-28 LO 12 Revaluation of Plant Assets Merody Company acquired equipment on January 1, 2021, for €60,000. This equipment is being depreciated on a straight-line basis over its six-year useful life. There is no residual value at the end of the 6-year period. The appraised value of the equipment approximates the carrying amount at December 31, 2021. On December 31, 2022, the fair value of the equipment is determined to be €50,000. Merody decides to elect to value this class of equipment using revaluation model. Required: 2921019x3 3619 1. Prepare the journal entries for 2021 related to the equipment. 2. Prepare the journal entries for 2022 related to the equipment.

請問這題a為何用DTFT再逆轉換算出來y[n]=0與解答用z轉換結果不同

2.5. A causal linear time-invariant system is described by the difference equation y[n]-5y[n-1]+6y[n = 2] = 2x[n— 1]. (a) Determine the homogeneous response of the system, i.e., the possible outputs if x[n] = 0 for all n. (b) Determine the impulse response of the system. (c) Determine the step response of the system. ==

哪一個段落沒有主題句？ 我覺得是第一個，對嗎？ 要怎麼替這個段落寫出主題句呢？

2 Despite different home cultures and countries, international students' main overall motivation is the desire get out on their own, to carve out a new direction in their lives. "Foreign students" do not casually abandon the comforts of family and cultural ties; they have done their homework on Canadian schools. All their preparation, though, cannot prepare them for the loneliness and ongoing difficul- ties they face, from cold winters to financial issues related to the higher tuition fees they must pay. Some students, though, emigrate to escape those same tight- knit families and bonds that others find so painful to leave behind. A Macleans "On Campus" report notes that family expectations may be opposed to students' visions for themselves and lead them to reject accepted values and career paths in their hometowns and countries. Csilla, a web-design student at Waterloo admits, "I was always supposed to enter my family's restaurant business in Budapest, but I felt suf- focated even working part-time as a server. Web design is my passion, and I wanted 12: CAUSE OR EFFECT [- a completely fresh start, something that is completely my own ("International Stu- dents"). Finding independent paths to their own dreams is the key here, whether students choose those paths as a result of personal ideals or as a reaction to pre-set future plans.

綠色螢光筆的不是很了解 1. 為什麼會有5呢？ 2. 為何要加52000

dand 2. (LO 3, 4) On January 1, 2020, Hayslett AG had the following equity accounts. Share Capital-Ordinary (€10 par value, 260,000 shares issued and outstanding) Share Premium-Ordinary Retained Earnings During the year, the following transactions occurred. April 1 May 1 June 1 Aug. 1 31 Dec. 1 Declared a €1.50 cash dividend per share to shareholders of record on April 15, payable May 1. Paid the dividend declared in April. Announced a 2-for-1 share split. Prior to the split, the market price per share was €24. Declared a 10% share dividend to shareholders of record on August 15, distributable August 31. On August 1, the market price of the shares was €10 per share. Issued the shares for the share dividend. Declared a €1.50 per share dividend to shareholders of record on December 15, payable January 5, 2021. Determined that net income for the year was €600,000. 31 Instructions Solution 2. a. Apr. 1 May 1 June 1 Aug. 1 31 Dec. 1 31 1 Cash Dividends (260,000 × €1.50) Dividends Payable Dividends Payable Cash No journal entry needed for share split Share Dividends (52,000* × €10) Ordinary Share Dividends Distributable (52,000 × €5) Share Premium-Ordinary (52,000 × €5) *520,000 x.10 Ordinary Share Dividends Distributable Share Capital-Ordinary Cash Dividends (572,000** × €1.50) Dividends Payable **(260,000 × 2) + 52,000 Income Summary €2,600,000 1,500,000 3,200,000 Retained Earnings Retained Earnings Share Dividends Cash Dividends (€390,000+ €858,000) 390,000 390,000 520,000 | 260,000 858,000 600,000 1,768,000 390,000 390,000 260,000 260,000 Prepare dividend ent section. 260,000 858,000 600,000 520,000 1.248,000 14. Luz (a) r equ 15. pre 16- 17 for 18

不知道怎麼用顯著性水平來進行檢驗

1. A sample of 100 students in a high school have a sample mean score of 505 on the English portion of the SATs. If the sample standard deviation is 110, test the hypothesis that the high school's mean SAT score is 480 against the alternative hypothesis that the school's mean SAT score is greater than 480, at the 0.05 level of significance.

請問大一統計學這兩題有人看得懂嗎🥲

2. To study the attitude of mother and father towards their daughter participating in the outdoor games, a sample of 200 fathers and 250 mothers was investigated. In these two samples, 120 fathers and 50 mothers preferred their daughter to go for outdoor activities. Can it be concluded at a=0.01 level of significance that the proportion of father is significantly higher than that of mother in preferring their daughters for outdoor activities? 3. A firm has a generous but rather complicated policy concerning end-of-year bonuses for its lower-level managerial personnel. The policy's key factor is a subjective judgment of "contribution to corporate goals." A personnel officer took samples of 24 female and 36 male managers to see whether there was any difference in bonuses, expressed as a percentage of yearly salary. The data are listed here: Gender Bonus Percentage Female 9.2, 7.7, 11.9, 6.2, 9.0, 8.4, 6.9, 7.6, 7.4, 8.0, 9.9, 6.7, 8.4, 9.3, 9.1, 8.7, 9.2, 9.1, 8.4, 9.6, 7.7, 9.0, 9.0, 8.4 10.4, 8.9, 11.7, 12.0, 8.7, 9.4, 9.8, 9.0, 9.2, 9.7, 9.1, 8.8, 7.9, 9.9, 10.0, 10.1, 9.0, 11.4, 8.7, 9.6, 9.2, 9.7, 8.9, 9.2, 9.4, 9.7, 8.9, 9.3, 10.4, 11.9, 9.0, 12.0, 9.6, 9.2, 9.9, 9.0 (1) Is there significant evidence that the mean bonus percentage for males is larger than the mean bonus percentage for females? Use a a=0.05. (2) Estimate the difference in the mean bonus percentages for males and females using a 95% confidence interval. Male

拜託各位會計好手教教新手

21:20 < . Marbletop, Inc. had the following transactions during October: . ● LINE . (0) • 5 Purchased land and a building for $50,000 and $175,000, . 第一次作業題目.docx 3 Purchased $80,000 of equipment, paying 40% in cash and the balance on account. respectively, for $65,000 cash and signed a note for the balance. Paid monthly rent of $2,000. 8 9 Issued stock for $100,000. 10 Provided services on account for $56,000. 15 Purchased $15,000 of equipment on account. 16 Collected $24,000 from customers who had previously purchased inventory on account. 23 Made a payment of $2,000 plus $300 interest on the notes payable. 24 Paid $9,000 on accounts payable. 28 Purchased supplies of $1,200 29 Paid monthly salaries of $3,000 At the beginning of the month, Marbletop had the following account balances: Accounts Payable Accounts Receivable Buildings Capital Stock Cash Land Wages Expense Required: ||| $ 2,000 12,000 51,000 10,000 10,000 105,000 10,000 NA 46+ Notes Payable Rent Expense 0 Retained Earnings Service Revenue Supplies Equipment Interest Expense 1. Journalize the transactions. 2. Post the journal entries using T-accounts for each account. 3. Prepare a trial balance at October 31, 2022. il 04 $ 40,000 8,000 55,000 125,000 1,000 33,000 2,000