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自然科學 大學

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.

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商業與管理 大學

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

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商業與管理 大學

不好意思~請問一下這兩題有人會嗎?

班級 1:34 在美國有個研究生卡拉她替外國學生修改論文 1. 計算填入 MR 邊際收益數值 2. 劃出保留價格線(需求線 D)與遍濟收益線 MR BUFFET 原來在公司當經理年薪資 US$11,000 他想種玉米地租設備與耗材支出達 US$10,000 若每年玉米出售可以賺 US$22,000 若農地是畢費繼承而得,農地地租行情為 $6,000會有什麼改變? 請問 1.會計利潤是多少? 2.經濟利潤是多少? 3.正常利潤是多少? 4.他應該繼續種玉米嗎? 36 34 32 30 學生 保安價格 收益 A $40 $40 B 38 | $76 C $108 D $136 E $160 F $180 G 垃圾老師出的垃圾題目 MR | 公司的利得| $100/日| $150/日 居民的利得 $100/日 $70/日 總利得 | $200/日| $220/日 生產成本與排煙量 B 製程(排煙量) 3(噸/日) 汙泥石油 200 西北木材 320 1. 汙染不受管制.兩家製造成本總共多少? 姓名 A 4(噸/日) 100 300 2. 若政府要求汙染減半,兩家製造成本總共多少? 到伯克隆比的公司生產有毒廢棄物除非要区居民同 一點都不嚴謹是要怎麼做答 詳細計算 且詳細說明 C 2(噸/日) 600 380 3.卡拉時間的機會成本為 $29 經濟利潤多少? 4.為了符合 社會效率$30 卡拉應訂幾份報告? 4G 67 5.若她盯差別訂價其經濟利潤多少?” D 1(噸/日) 1300 480 3. 若政府每噸汙染課稅$101.兩家製造成本總共多少?污染排放量幾噸? 4. 若政府每噸汙染課稅$1001.兩家製造成本總共多少?污染排放量幾噸? E (噸/日) 2300 700

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