問題詳情
2. 已知苯的Kf =5.0℃/m，凝固點為 5.5℃。今取 0.60 克醋酸（分子量 60）溶於 40 克的苯中，在溶液中醋酸部分形成二聚體分子：
，測得上述溶液的凝固點為 4.5℃，求此溶液中醋酸分子形成二聚體分子的百分率（偶合率）有多少？（5 分）
，測得上述溶液的凝固點為 4.5℃，求此溶液中醋酸分子形成二聚體分子的百分率（偶合率）有多少？（5 分）
參考答案
答案：D
難度：非常困難0.0928196
統計：A(34),B(2341),C(13),D(265),E(0) #
個人：尚未作答書單：教師法、性別平等、教師法
內容推薦
- 【題組】(A) broadcast(B) be broadcast(C) broadcasted(D) be broadcasting
- 【題組】(3)在 1 升容器中，當[H2]＝2M，[NO]＝3M時，每秒鐘可生成N2多少莫耳？【3 分】
- Just last month, Google opened to the world an in_____ve Wave communications platform that liber
- 設f (x)＝x4＋2x3－3x2＋5x，則 ＝?
- No matter what the ____ of the election is, the issue of human rights has been emphasized.(A) out
- 【題組】(A) However(B) Instead(C) Unfortunately(D) Furthermore
- It’s always sad to see aboriginal people, somewhere in the world, are being wiped out by the plea
- 將 4 克的P4O6(分子量=220)溶於水中，配成 200mL之水溶液，取出 50mL來與 0.2M的氫氧化鈉溶液反應，請問需要 0.2M氫氧化鈉多少體積才可完全中和?【3 分】
- 已知 A (g)→ 2C (s) ＋3B (g)，進行下列實驗：取 A 在定容下反應，測得[ A ] 對時間之關係如下：【題組】(1)根據以上實驗，寫出此反應的速率定律式【3分】
- The infection of the virus might be _____ by casual contact such as shaking hands.(A) transformed
內容推薦
- As more developed countries are trapped in the economic depression, people are concerned that the
- 【題組】(A) competed(B) compete(C) competing(D) competition
- Drug abuse poses a threat to people’s health. The government decides to set more strict rules to
- 【題組】(2)運動時，血糖濃度降低，分泌物乙相當於？
- 二、Translation：8%直到他出國旅遊，他才瞭解到中國文化深植於我們的行為和價值觀。(It was not until...that....) (4%)
- When the candidate c_____ded defeat in the election, his supporters left his headquarters with a
- 六、Reading Comprehension： TheFIFA World Cup(also called the FootballWorld Cup, theSoccer World Cup,o
- Edvard Munch tried to convey his emotional ______ in his famous painting, The Scream.(A) visibil
- 我們排放溫室氣體必會加速地球暖化及海平面上升。(…never…without….) (4%)
- In the exhibition, viewers found themselves stopping to gaze at the amazing pictures which de____
- 【題組】Which country won the t Football World Cup in 2006?(A) Brazil (B) Italy (C) Germany (D) Urug
- The President’s inadequate comment ____ a critical response from the public.(A) sprained(B) pira
- The Copenhagen climate summit meeting aims to _____ some practical proposal to deal with the cris
- 無鉛汽油中添加甲基三級丁基醚的目的何在？(A)降低震爆性(B)減少空氣汙染(C)減少一氧化碳生成(D)使汽油完全燃燒。
- In response to the government’s new policy on the nationwide educational reform, thousands of tea
- Scores of ____ gathered in front of the City Hall to protest against the mayor’s new policy.(A)
- The hijackers eventually ______ themselves to the police. The passengers and the staff were mirac
- 直徑在10-9~10-7 的粒子所構成之溶液，稱為膠體溶液，則下列敘述何者正確？ (A)膠體粒子間相互碰撞而造成布朗運動 (B)在豆漿中加糖可使豆漿凝聚成豆花狀 (C)廷得耳效應是因膠體粒子散
- With more and more icebergs ____ into water, the sea level is bound to rise. The phenomenon will
- The doctor regularly _____ the patient’s heart rate and blood pressure to ensure that he had stab
- The research team invented some _____ devices to help people to save energy in the daily life.(A
- 【題組】下圖分別為1950年及2000年的中國人口金字塔結構，請根據圖中資料加以判斷，下列敘述哪些正確？(甲)出生率大幅降低；(乙)扶養比値下降；(丙)老年比例增加；(丁)總人口數減少。 (A)甲
- 【題組】(A) consists of(B) suffers from(C) abides by(D) results from
- A pain-killer can only provide ____ relief from pain, but not real treatment.(A) permanent(B) te
- 【題組】(A) other(B) another(C) others(D) the others