問題詳情
18.若血紅素的分子量為68000，其含鐵百分率為0.33%，試問一分子的血紅素中含有多少個鐵原子？（原子量：Fe＝56）
(A)2
(B)3
(C)4
(D)5
(E)6。
(A)2
(B)3
(C)4
(D)5
(E)6。
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- 有關陰極射線的敘述，何者正確？ (A)發生於低電壓與高氣壓下 (B)本質上為α射線 (C)為拉塞福所發現 (D)打在硫化鋅上，產生白煙 (E)經過電場，會朝正極偏轉。
- 有關硬水的敘述，何者錯誤？ (A)硬水在鍋爐中加熱會產生鍋垢，其主要成分為硫酸鈣和碳酸鈣 (B)暫時硬水中，含有鈣和鎂的酸式碳酸鹽 (C)硬水的軟化主要是除去水中的鈣離子和鎂離子 (D)合成清潔
- 日常生活中，常被用來檢驗硬水的物質是： (A)石灰水 (B)肥皂水 (C)石蕊試紙 (D)酸鹼指示劑 (E)軟水。
- 一個市面上購買的離子交換淨水器裝有陽離子交換劑，飽和後，以濃食鹽水沖洗，至少耗用234克食鹽才能再生利用，此淨水器最多可吸收多少莫耳鈣離子？ (Na＝23，Cl＝5) (A)0.5 (B)
- (C)Christopher Reeve was an actor of great ability who played superman in four movies. (29), he was
- (A) facing (B) faced with (C) come for (D) run into
- (A) give (B) will give (C) have given (D) had given
- Families __________ on major holidays like Mid-Autumn Festival and Chinese New Year.(A) hook
- II. Cloze 15%(A)On the journey of life, we are fated to experience sorrow and loss. In fact, all sun
- （2）附中貨運公司分配使用貨車的方法數共幾種？【6分】
內容推薦
- (B)Geoffrey Canada has 650 kids in college right now. He’s helped raise a generation of children in
- 吾人打算製造一座太空電梯，以探測外太空；支撐這座太空電梯的纜繩是一束由十億條、長達50萬公里的奈米碳管所組成，每條奈米碳管含有6 × 18個碳原子。試估計該座太空電梯所需碳要多少公斤？（原子
- He was c ned to a wheelchair after the accident. He can no longer go anywhere freely.
- The fourth paragraph is mainly about .(A) Geoffrey Canada’s worry about the Harlem Children’
- 右圖為某一醣類的構造，有關此一構造的敘述下列何者正確？ (A)為單醣 (B)為六碳醣 (C)是構成雙醣和多醣的基本單位 (D)是細胞呼吸作用可直接利用的醣類。
- IV. Discourse Structure 10%Coffee drinkers have traditionally been warned about the ill effects of c
- When Esther first visited Paris, she was o med by the grandeur of Eiffel Tower. To her
- Which of the following is true?(A) The Zone provides various services for 650 kids who live
- 下列何者具有最多的氧原子？ (A)2克氧氣 (B)0.1莫耳的臭氧(O3) (C)6克分子的氧氣 (D)011022個臭氧分子 (E)0.3莫耳的臭氧與0.2莫耳的氧氣之混合氣體。
- 63~67 Choose from the words below to fill in the blanks and make necessary changes to them.obeywillr
- (C)Stephen Hawking is a well-known name in the scientific community. He has made some astounding obs
- 二、多重選擇題：每題4分，每個選項0.8分，答錯一個選項，倒扣0.8分( 即題分之1/5倍 )；共28分下列哪些敘述不是道耳頓原子學說的內容？ (A)原子是構成物質的基本粒子 (B)不同元素的原
- 若化合物A2B之重量百分組成為60﹪A與40﹪B；則化合物AB2之重量百分組成，與下列何組重量百分組成最接近？ (A)27 ﹪A與73 ﹪B (B)33 ﹪A與67 ﹪B (C)40 ﹪A與60
- 在1atm時，100克的－10°C的冰欲變成100°C的水蒸氣，共吸熱若干仟卡(kcal) (A)8 (B)2 (C)2 (D)4 (E)4 。（設冰的比熱為0.9
- Based on what you have read so far, what is true about Stephen Hawking?(A) He was born in Ox
- 下列關於拉瓦節的敘述，何者正確？ (A)有「化學之父」之稱 (B)提出「氧化理論」，推翻了「四元素論」 (C)定義元素及化合物，建立了命名系統 (D)提出「質量守恆定律」 (E)將空氣中可助燃的
- 關於核反應，何者錯誤？ (A)反應前後會遵守質量守恆定律 (B)反應前後的原子種類會改變 (C)反應過程中若有質量損失，會遵守質能互換原理 (D)目前的核能電廠是利用核分裂來發電 (E)核分裂過
- In which of the following magazines or books may you most possibly find this article?(A) Med
- V. Reading Comprehension 18%(A)While millions of people all over the world know about Anne Frank, fa
- 某元素，其原子總數為 505✕1024 個時，其質量為80克，則該元素的原子量為若干？ (A)320 (B)80 (C)32 (D)16 (E)8。
- 在蒸餾水製造過程中，很難除去的雜質為： (A)氯氣 (B)二氧化碳 (C)灰塵 (D)礦物質 (E)氬氣。
- VI. Vocabulary & Derivatives: 10%In order to put down the riot, the Syria’s army shot numero
- What does the word “sustain” in the first paragraph probably mean?(A) To keep a secret.(B) T
- 三.填充題:（1～6題,每題4分；7～12題,每題5分，共54分）數列＜an＞的定義如下：a1＝1, a2＝3, an+2＝an+1＋2 an ；則a6＝__ 。
- The government is going to operate a new p y regarding the traffic law: backseat passen