請問這題 C. D. E怎麼算

DM) 出版 WE (KCIO) 者油(KC 2.若有14克氫氣與80克氧氣燃燒生成水,下列敘述哪些正確?(應選3項) 完成後將生成5莫耳水(E)過程中用去2.5 莫耳氫氣 (A)氫氣為限量試劑 (B)氧氣為限量試劑 (C)反應完成後將剩餘4克氫氣 D FOR SECH(2) 3045) MAKELY SKCIO H2+102 → AVO 係2:11 14g jog 458 XX8 = 45 全)習作同 Male 14 80 20 8

請問一下一般來說不都是有水的溶液就是以水為溶劑嗎？ 那像圖片中這個要怎麼說？

溶質 溶劑 氣態 氣態溶液 液態 氣態 固態 實例 空氣 空氣中的水氣? 碘溶於氨中 汽水

請問一下課本上 所說的 燒杯刻度無校正,只可粗估體積 那我該怎麼校正燒杯的刻度呢？

請問為什麼是C不是A 謝謝

C" 100. ( 下列有關, CIF 及CI-游能大小之順序,何者正確? (ynxF>CI>F->CIF ¯>C] (^ >E>CI>CT>F]‚>>>E¯>F>CH>C (EX>C>F>C!• F>F>Cl F741 *

請問C為何是錯誤的？ 比熱越大不是代表定量的熱所造成的T會越小嗎？

紅筆處怎麼來的

17.水煤氣的燃燒反應式: CO(g) + (g) →CO₂(g) AH=-284 kJ H₂(g) + O₂(g) →H₂O(g), AH=−243 kJ H₂(g) +-—-0₂ (8) 2 44 28-175 以 24 克焦炭通入 HO(g)中產生的水煤氣,完全燃燒放出熱量若干灯? 100 Can207 co th C 27, (med) U CH H2O H2+(8) For (08# Or): E APCS IN EURTRE HA (DOHE+(g) (g)O-MEKS HE+(00.4 LE VA × (-28/1/+2×(213) = -105 2x 2x $$ 0,0²+(9) HMC 放:1054(00:00(2) S Mb

請問這題PH值要怎麼求出來呢 算到這裡就接不下去了 謝謝😭

AIC13 (S) Calculate the pH of a 0.010 M aluminium chloride solution. The Ką value for Al(H₂O)6³* is 1.4 × 10³. (A) pH=1.35 (B) pH=2.38 (D) pH=4.31 (E) pH=5.36 (C) pH=3.43 AlCl3 = Al³+3c1 0.01 AI(H₂0)6+ H₂0A1 (H₂0)3 + H30* x X=0.0037 -3 X = 1.4×10²

想請問這題怎麼寫～

1. Compare the products formed by the reaction formed when the following compound reacts with Br, in the presence of an organic solvent versus water.

求題目的過程與解答，問題四延續問題三，謝謝

Problem 3 Creating a 0.1 Normal Solution Suppose you must determine the amount of hydrogen halides (HCI, HBr and HF) in the flue gas leaving a chemical reactor. The emission sampling train for hydrogen halide determination calls for a total of 200 mL of 0.1 N H₂SO4 as an absorbing solution. The absorbing solution will be located on the impingers of the sampling train. How many grams of H₂SO4 should be added to water to create 200 mL of a 0.1 N H₂SO4 solution? > The chemical reaction of H₂O and H₂SO4 is as follows: H₂SO4+H₂O 2H++SO₁²+H₂O 4 > Approximate atomic weights of elements: H=1, S=32, O=16

在線急 請問這些題目的異構物怎麼畫 求大神指點🥺

he pictured in the below is a sugar called (-)-arabinose. Its specific rotation is -1 H OH. OH c ŢII -H (a). Draw the enantiomer of (-)-arabinose. (b). Draw a diastereomer of (-)-arabinose. (c). If possible, predict the specific rotation of the structure you draw for (a) H (c) (b) HOH HHW H -OH CH₂OH C=O toH -OH -OH OH H CH₂CH