11🙏🙏🙏

11 Anet gain of water tends to occur A) in a hypoosmotic solution from an isosmotic solution B) in an isosmotic solution from a hyperosmotic solution CC) in a hyperosmotic solution from a hypoosmotic solution D) in a hypoosmotic solution from a hyperosmotic solution E) in one isosmotic solution from another isosmotic solution of the same composition

大一普化5.58求解

/r'277e777y 記 的 B 9 5.61 A mixture of gases contains CH4, Co2Heo, and CHS. the total pressure 1s 1.50 atm and the numbers of moles of the gases present are 0.31 mole for CHu, 0.25 mole for CH日c, and 0.29 mole for C3Hs, calcu- ]ate the partial presSures of the gases. A 2.5-L fask at 15”C contains a miXture of three gaseS, N2, He, and Ne, at partial preSSureS of 0.32 atm for N2, 0.15 atm for He, and 0.42 atm for Ne. (a) Cal- culate the total pressure of the miXxture. (b) Calculate 出e volume in liters at STP occupied by He and Ne 議 the N2 1s removed Selectlvely. NN Dry air near sea level has the following composition by volume: N2, 78.08 percent; O,, 20.94 percent; Ar, 0.93 percent; CO,, 0.05 percent. The atmospheric pressure is 1.00 atm. Calculate (a) the partlal pres- Sure of each gas in atm and (b) the COohcentratlion Of each gas in moles per liter at 0。C. (7/7///- Because Volume is proportional to the huber of moljes Present, mole fractions of gases can be eXpresSed as ITatios of volumes at the same temperature and preSSure.) A mixture of ITmHg. If the partial pres- mmHeg, what is the partial pres- QT pressure of water at 285C 三 Sure of helium is 368 erature. (1) Whiceh container has the smallest mole Shi 人

大一普化5.50求解

3.43 AN 失 交 (方 N 全 只 憲 5.49 5,@ Re Problems 5 0t ln the stratosphere itadiation from the sun. and presSsure of ozone in Ths absSQTt Typieal the Stratosi Kandl0人10 am re spectively. How many ozone molecules are present in ]l.OL ofair under these conditions? Assuming that air contalns 78 percent N2, 21 pereemt O>, and 1 percent Ar, all by volume, how many mol- ecules of each type of gas are presentin 1.0Lotair 肚STP? A 2.10-L vessel contains 4.65 g ofa gas at 1.00 atm and 27.0。C. (a) Calculate the density of the gas In grams perliter. (b) What is the molar mass of the gas。 Calculate the density of hydrogen bromide (HBr) gas in grams per liter at 733 mmHg and 467C. A _ certain anesthetic contains 64.9 percent Co, 13.5 percent H, and 21.6 percent QO by masS. At 1205C and 750 mmHg, 1.00 L of the gaseous com- pound weighs 2.30 g. What is the molecular formula 9f 人he compound? Aecompound has the empirical formula SF4. At 20.0 0.100 g of the gaseous compound oceuplesa Volume of22.1 mL and exerts apresSure of 1.02 atm, What 1S its molecular formula? Dissolving 3.00 g of an impure Sample 0f calcium carbonate in hydrochloric acid produced 0.656L 人 carbon dioxide (measured at20.0C and 792 mmHg). Calculate the percent by mass of caleium carbonate in the sample. State any assumptilons, oleulafe the 和ass in orams Ofhydrogen chloride bro-

財管題目，求解😭😭😭

@ 今天,小陳正在慶祝她的 40 歲生日。她的願望是希望在 65 歲退休時,退休後 的 20 年間,每年生日時都能從儲著帳戶中提出$240,000。第一次提款時間是她 的 66 歲生日。小陳打算參加兆豐銀行零存整付專案 (年利率 2%) ,每年生日 時都存入一筆等額現金到此專案帳戶 ,做為退休基金之用。 (1) 如果小陳從 40 歲開始存款,一直到 65 歲 (最後一筆存款是 65 歲生日) ,請問 她每年要存入多少錢才能支應她的退休需求 ? (可先找出以下條件:預計幾年後 退休 ? 退休後每年可領金額 ? 退休儲蓄金可使用年限? ) (2) 假設小陳剛剛很幸運地中了大樂透,所以她決定要改變計畫,不要每年存入等 額的現金,而是在40歲生日時直接存入一大筆可以滿足她退休計畫的錢。請問 大樂透獎金至少要多少錢才夠呢 ? 如果大樂透獎金為$1,500,000 , 請問足以支 應退休計畫嗎?若是可以,請問小陳退休後每年可提領的金額增加多少? 若是不 足以支應,請問小陳每年要再存入多少錢才能支應她的退休需求? ( 假設不考慮 稅賦等影響因素 ) (3) 假設小陳的公司提出員工分紅計畫 ,每年會有$12,500 元分紅直接存在她的儲蔡 帳戶。此外,小陳預期在她 55 歲生日時,可從一筆家族信託基金領到$120,000, 到時她也會把這筆基金直接存到她的退休金帳戶。請問,若有分紅計畫和家族 信託基金的幫助,小陳每年應該還要存入多少錢,來支應她的退休計畫呢?

沒解答，想確認答案

hlorine.。”QOne compound contains talns 13.020%6 chlorine by mass. msS in the two compound? atomic_ number and its mass

請問題目是想要我們做什麼，我看不太懂😅 但是反函數有試著求出來是x=y/(1-y) 請問對嗎？ 謝謝

System Find the composition ofthe following updating function with itselt (put thinss 同 to iplify the compositlom。 and find the inverse 當 over a common denor functior- 7G0 =一-

請問句末的reservoir effect是儲庫效應嗎？（Fig1） 是的話，請幫我繼續解答🙏 有一個含萃取物凝膠，塗抹在皮膚上，滲透係數Kp 較低，但是滯留時間Lag time很長，所以文章解釋為reservoir effect儲庫效應，我看了一下參考文獻(fig2)，但... 繼續閱讀

The HPLC analysis ofthe last samples colleceted in the permeation assays allowed to caleulate the percentage ofbioactive compounds that permeated through the biologieal barrier after 24 hours as well as their permeation fluxes, expressed as hg em? hi (Table 3). Asp-eoumarie acid and caffeic acid are slightly lipophilic, iis possible that, even 放 they did not manage to pass the s/rgjo corjezo, they were trapped in the human membrane, happening whatitis called “Teservoir effee 六

求此題解法

\ 全閃作食 似合公所 全 TETTTEDEUUH 光 (人 夷浴汪淋浴弦潑地夫《慘 sg 說 /全全 台7夫吉戰潑玉卻瑟旨 3 和 說 記 選下 Fe0o90O1i.06. What percentage of 急 「 The compositon ofa sample of iro | 她Sirgn is in the form ofiron(丁)? (59% 【101 台大5Bj | Bo 全 丈夫 《馮 區嗇參 22.22 7) WUyiOG@ 33 會

只有氧是不規則的命名嗎？ Tetroxide vs tetraoxide Pentoxide vs pentaoxide PCl5 後面Cl 就是 pentachloride

6 机 BLE 2.6 | Prefixes Used to Indicate Number im Chemical Names U選4 7)o7o- g- 7二 Numberindicated 1 7efrg- 2e77o- Agexog- 7epfg- Ocfg- 7o7g- 選和os和 eu |,, decg- INTERACTIVE EXAMPLE 2.8 SOLUTION JPHABnEB 呈_Atomsg, Miolecules, and Ins consider the names ot the s will no To see how these Tules apply, 沿 同 lent compounds formed by nitrfgg 時 as tematic Name 了 同 loxi Nitrous oX1ce de 。 imitrogen InonoX1 1 9 ii monoxide NI 時 4 NO Nitrogen N os Dinitrogen TioX1 同 Noo, Dinitrogen tetIOX1 Noo Dinitrogen pentoxi 2 avoid awkward pron that to hen the element beglns Wtt 7oO/ dinitrogen tetrdox ng examples fthe prefiX trogen tetroxide, tt their common names- esystematic names to Notice from the precedi often drop the final ? % 20 example, N204 1S called dinlt called carbon monoxide, 7 carbo Some compounds are always Te are water, ammonia, and hydrogen pe H2O2 are never used. n monoox1l ferred to by roxide- Th Naming Type 山 Binary Compounds 1. Name each of the following compounds: a. ,PCD DBGIG MS 09 2. From the following systematic nameS, Write the formula for ea a.。 Sulfur hexafluoride b. Sulfur trioxide c.。 Carbon dioxide 1 Formula Name a. PCl Phosphorus pentdehloride Be Phosphorus trichloride c. SO2 Sulfur dioxide 2. Name Formula a.。 Sulfur hexafluoride SFe b.。 Sulfur trioxide SO ce. Carbon dioxide CO