求解🙏🙏🙏

3. 若一牛奶(比熱為3.8 kJ/kg℃)以0.8 kg/s 的質量流速,流經一逆流式管 式熱交換機進行巴斯德殺菌,其入口溫度為5℃,出口溫度為75℃。則殺菌 此牛奶需吸熱多少?而熱水(比熱為4.18 kJ/kg℃)流速為1.2 kg/s 的入 口溫度為90℃,則出口溫水的溫度為何?而log-mean temperature difference (AT)為何?若管內直徑為4cm,Ui 為10 kW/m°C,則此管式 熱交換機的熱交換面積為何?其管長為何?(20 分)

究竟ISF是Plasma 的三倍還是四倍？？？ 查了資料 看到網路上都是 ISF佔細胞外液80%，血漿占細胞外液20% 可上課給的講義是占75%和25% 寫起來是4:1、3:1 感覺差很多，不知道哪一個是對的

請問為什麼這題是d？

14. 1.00 mL ofa3.05x 10 solution ofoleic acid is diluted with 9.00 mL ofpetroleum ether, forming Solution A. Then 2.00 mL ofsolution A is diluted with 8.00 mL ofpetroleum ether, forming solution B. How Iany grams ofoleic acld are 5.00 mL ofsolution B? (Molar mass for oleic acid =282 g/mol) a. 4.30 x 10《g b.l19x107g @証2x 0 gg d. 8.60x 10《g e.430x 107g 4WSJZzA. d

請問這題怎麼寫 有算出來(H2PO4)-和(HPO4)2-的莫耳數，但不知道該怎麼取

4, (15%) Describe the preparation of 1.0 Lof0.2 MpH6.O0PBS from the solid Of Na3PO4 and H3PO4. (mo1)

41.c 答案為4*10＾（-7） 可是此題的有效數字不是應該為兩位嗎？ 求解 感恩🙏

ma史 40.。 Perf 1 | am 記 following mathematical] Operatlons, and expDresSS Tesult to the correct number of s1lgnlficant filgures. @@ 036.089o 2 1.01 DOCX OIO22 2 0 0 XX 50021x 103 X 7.3904X 102 2.00 xX 106 SO ad, 41.。 Perform the following mathematlcal operatlonS, and express the result to the correctnumber of signlflcant filgures. 2.626 祝 0.470 80.705 3隆 0.623 0.4326 b. (6.404 x 2.91)/(18.7 一 17.1) CC eduamaaese2ecero0一9521ye+94 (SO 0記 CC_IO 0 1 fa (Assume that this operation is taking the average of tfour numbers.Thus 4 in the denomlnator 1S eXact.) 人 ao,

在網路上找到算式，但是看不懂

. 計算0.1 M 醋酸(Ka = 1.8x10 “)水溶液的 pH 值。

第二題麻煩一下~謝謝

ae OLIE_UDOO, Look up the density ofa typlical surface rock like granite in anothersourceand compareitwith the density ofthe Earth. 2 入 which is the nu人所 Ofa 由 Can be modeled as a sphere with a diameter of 2.4 fmtand a mass of 1.07 X 10 ?7 kg. (a) Determine the density of the proton. (bp) State how your answer to part (a) compares with the density of osmium, given in Table 14.1 in Chapter 14. ?, Two spheres are cut from a certain uniform rock. One has TadIus 4.50 cm. The mass of the otheris five times greater. Find its radius. 4 What mass ofa material with density p is required to make 全 時 同 划 呈