問題詳情
37.取1莫耳硫酸鉀（K2SO4）溶於水，完全溶解後加水配成2公升的水溶液。若硫酸鉀在此水溶液中完全解離成鉀離子（K+）和硫酸根離子（SO42-），刖此水溶液中所含鉀離子與硫酸根離子的莫耳數，下列何者正確？
(A)鉀離子有1莫耳，硫酸根離子有2莫耳
(B)鉀離子有1莫耳，硫酸根離子有1莫耳
(C)鉀離子有2莫耳，硫酸根離子有2莫耳
(D)鉀離子有2莫耳，硫酸根離子有1莫耳。
(A)鉀離子有1莫耳，硫酸根離子有2莫耳
(B)鉀離子有1莫耳，硫酸根離子有1莫耳
(C)鉀離子有2莫耳，硫酸根離子有2莫耳
(D)鉀離子有2莫耳，硫酸根離子有1莫耳。
參考答案
答案：D
難度：簡單0.7
統計：A(0),B(0),C(2),D(7),E(0)
內容推薦
- 表(一)是甲、乙、丙、丁四組數據。判斷哪一組數據的平均數（算術平均數）最小？ (A)甲(B)乙(C)丙(D)丁
- Ａ There was a story many years ago of a school teacher--- Mrs. Thompson. She told the children on t
- The island, to the mainland by a bridge, is easy to go to.(A)joining (B)to join (C)joined (D)hav
- If we _______ now to protect the environment, we'll live to regret it.(A). hadn't acte
- Try not to cough more than you can _______ since it may cause problems to your lungs.(A). check
- 该求助者的P良表得分为70，说明他 ．(A)孤独、不关心他人，难以适应环境，不近人情，感觉迟钝，喜欢干奇怪的事情(B)能与人相处，能较好地适应环境，态度温和、不粗暴，善解人意(C)焦虑、
- C Odiand remembers like it was yesterday working in an expensive French restaurant in Denver. The ic
- 8．下列对原文赏析，不正确的一项是（ ）(A)这篇赠序的重点不是写丁琰的才干，而是针砭吏治不修、地方官员才德低下的社会现实，进而建议推行古代庠序、师友、赏罚之法，以培养足够的人才。(B)本文首段感慨贤
- Agood listener takes part in the conversation, _______ ideas and raising questions to keep the ta
- Jane won’t join us for dinner tonight and .(A)neither won’t Tom (B)Tom won’t either(C)Tom will t
內容推薦
- 小華將鋅片放入硫酸銅水溶液中，觀察到有反應發生，則關於此反應的敘述，下列何者正確？ (A)溶液中有氧氣不斷冒出(B)鋅片上有紅色的銅析出(C)溶液的顏色由無色漸漸變成藍色(D)反應會生成具刺激性
- Police have found _______ appears to be the lost ancient statue.(A). which (B). where (C). how (
- What did Mrs. Thompson find out about Teddy? (A) He often told lies. (B) He was good at ma
- 78多选对于心理咨詢师来说，不适宜的求助者的类型包括（）。(A)欠缺型(B)冲击型(C)忌讳型(D)冲突型
- When I first metbryan I didn't like him, but I _______ my mind.(A). have changed (B). chang
- 案例八：一般资料：李某，男性，20岁，大学生。案例介绍：两个多月来，李某无明显诱因地逐渐出现敏感多疑，总觉得周围的男同学对自己有意见，并认为原因是一位漂亮的女同学喜欢自己，导致其他男同学嫉妒，进而对他
- In what way did Mrs. Thompson change?(A) She taught fewer school subjects.(B) She became str
- 案例八下面是某求助者的SCL——90测验结果身体化强迫症状人际关系敏感抑郁焦虑敌对恐怖偏执精神病性其他总计因子得分26442234181511101811209项目数121091310676107因子
- People develop _______ preference for a particular style of learning at _____ early age and these
- Why did Teddy thank Mrs. Thompson at his wedding?(A) She had kept in touch with him.(B) She
- 81单选李某认为同宿舍同学回家住，就是对他有意见，提示其可能存在（）。(A)嫉妒妄想(B)关系妄想(C)钟情妄想(D)被害妄想
- The driver wanted to park his car near the roadside but was asked by the police _______.(A). not
- The brain operation was made possible mainly by _______. (A)taking the blood out of the brai
- The only way to succeed at the highest level is to have total belief _____ you are better than an
- 79单选进行咨詢效果评估，应紧紧围绕的是（）。(A)咨詢次数(B)咨詢目标(C)咨詢方法(D)咨詢效率
- The museum will open in the spring with an exhibition and a viewing platform ______ visitors can
- The door _______ open, no matter how hard she pushed.(A). shouldn't (B). couldn't (C).
- 17．Mr. Stevenson is great to work for -- I really couldn't ask for a boss. (A)better (B)good
- 从统计结果来看，该求助者的阴性项目数为 ．(A)46 (B)56 (C)66 (D)76
- 如果一个人在EPQ某分量表上的得分介于5和3之间或介于7和5之间，我们可以说该求助者 ．(A)具有某种典型个性特点(B)具有某种个性倾向性(C)某种个性特征处于中
- What is the right order of the steps in the operation? a.send the cooled blood back to the b
- B The Queen’s English is now sounding less upper-class, a scientific study of the Queen’s Christmas
- With Dr. White' s new idea, the operation on the damaged brain _______. (A)can last as
- Bears _______ fat stores throughout the summer and fall to have enough energy to last them throug
- E Most people want to know how things are made. They honestly admit, however, that they hard ly know