問題詳情
3. 使用奧斯特華德法製造硝酸，第一個步驟為 4NH3(g) + 5O2(g) ―→ 4NO(g) +6H2O(g)。如果 150 g 的氨與 150 g 的氧氣反應，產生 87 g 的一氧化氮，此反應的產率為多少?
(A) 33%
(B) 49%
(C) 62%
(D) 77%
(E) 100%
(A) 33%
(B) 49%
(C) 62%
(D) 77%
(E) 100%
參考答案
答案：D
難度：適中0.44
統計：A(4),B(2),C(5),D(11),E(0)
內容推薦
- ____tosignthecontract, they must inform the manufacturer of thisdecision before the end of Augus
- The school’s_will definitely suffer now that the investigation confirmed there was deliberatechea
- *閱讀下文後，回答 48--50 題礦坑垂直深度平均約四百公尺，某些更達九百，以長度計則可以長到三千。地熱溫度四十，大氣壓力增強，瓦斯充斥。無邊的漆黑，無援的深淵，接近閻羅殿府。坑道矮窄，跪伏曲身爬行
- 軟錳礦(pyrolusite)是由 Mn 和 O 組成的化合物。如果軟錳礦的質量中 63%是來自於錳，下列哪一項是軟錳礦的實驗式？(A) Mn2O (B) MnO (C) Mn2O3 (D) M
- Because of the political_betweenthe ruling and opposition party, many important policiesregardin
- Miranda noticed a frequent unusual tightness in her face, but it was her nearly nonstop yawning_
- An artist who has not yet even turned 21, Ruby is a fiddle genius whose next trick is to_herself
- 下列有關本文的敘述，何者正確？(A)猨類比皇帝，王孫類比百姓 (B)猨類比百姓，王孫類比皇帝 (C)猨類比小人，王孫類比君子 (D)猨類比君子，王孫類比小人 (E)猨類比父母，王孫類比
- In today’s democracy, what is the least_tosomepoliticianscould,onthecontrary,bethe mostneeded an
- Tony Blair, the former Prime Minister of the United Kingdom, has admitted that he regrets_thepos
內容推薦
- A research study showed that by the end of 5th grade, children who didn’ t read over their summer
- Not until after her father’s death_that he had earned a Bronze Star for combat heroism. He’dneve
- 乙醇在氧氣中進行燃燒，產生二氧化碳氣體和液態水。乙醇 C2H5OH(l)的標準燃燒熱是–138 kJ/mol。已知 H°f[CO2(g)] = –35 kJ/mol 以及 H°f[H
- 在下列化學反應中，哪一個化合物是氧化劑?6KNO3 + 5S + 2CaCO3 →3K2SO4 + 2CaSO4 + 2CO2 + 3N2(A) KNO3 (B) S (C) CaCO3 (D)
- The company owns several_technologypatents,whichareliterally their golden hens.(A)uprising(B)cutt
- The political maverick has been known for his puritan way of living. He_drinks_smokes,and has be
- The company plans to put at least 10 cars a day on sale every day through Monday, _thepromotion
- 太空船內充滿了 0.500 atm 的氧氣和 0.500 atm 的氦氣。如果船艙有一個很小的洞，使得氣體慢慢流失到船艙外面。以下哪一個敘述正確?(A) 氦氣流失量是氧氣流失量的 8 倍 (B)
- To many people, giving a public speech is not only a_challengebutalsoanightmare.(A)daunting(B)for
- Star Wars is an American epic space film series_Iwillneverbe tired.(A)of which(B)that(C)which(D)
- It has been estimated that approximately_oftheworld’s population, over one billion people, earns
- To make a holistic evaluation about students’ learning, the young teacher prefers asking student
- Taipei police are seeking the public’s assistance in locating a 5-year-old boy believed to_byhis
- After an overheated fight with his parents, Andy left home, and did not return_tenyearslater.(A)
- _ —in the 19th century, the university is the oldest in the world.(A)Found(B)Founded(C)To found(D
- It is high time that students ____ preparingfor the entrance exam.(A)start(B)started(C)will star
- (A)extrovert(B) external(C)increasing(D) infinite
- 三、克漏字測驗【請依照段落上下文意，選出最適當的答案】第一篇How will animals fare in prison? A parrot has spent five days 31 by th
- Which of following is NOT a possible suggestion that Gregg could give?(A)The less baggage yo
- (A)apart from(B) in place of(C)except for(D) due to
- Farms _____ the use of chemical pesticide and fertilizers to ensure the safety of organic foods.(
- (A)in contrast(B) in custody(C)at gun point(D) in stock
- Which of the following statement would Gregg most likely to agree to?(A)When in a foreign co
- 四、閱讀測驗第一篇Home, nature, and love are some of the main subjects in artist Marc Chagall’s work. In addi
- I would like to show my appreciation for Jason, who has played a _____ role in the project.Witho