有一种测定阿伏加德罗常数的方法需测定NaCl晶体的体积,具体步骤

有一种测定阿伏加德罗常数的方法需测定NaCl晶体的体积,具体步骤为:准确称出m g NaCl晶体粉末并置于定容仪器a中;用滴定管b向仪器a中滴加某液体ca仪器的刻度线,即可测出NaCl固体的体积。上述操作中的abc分别指

A.量筒、酸式滴定管、水             B.容量瓶、碱式滴定管、苯

C.量筒、碱式滴定管、水             D.容量瓶、酸式滴定管、四氯化碳

答案

D

相关题目

下列各组物质,能共同存在于水溶液中的是(    ) A.BaCl
下列各组物质,能共同存在于水溶液中的是(    ) A.BaCl2、Na2SO4、Ca(OH)2                 B.AgNO3、BaCl2、K2SO4 C.MgCl2、CuSO4、NaNO3       
  _______ Sunday morning, he cleaned his room. _______the afternoon, he did hi
  _______ Sunday morning, he cleaned his room. _______the afternoon, he did his homework. ______night, he watched Olympic Games.     A. On; On; On     B. On; In; In      C. On; In; At
下列叙述不正确的是(   )A.用熟苹果催熟青香蕉     
下列叙述不正确的是(   )A.用熟苹果催熟青香蕉                    B.用四氯化碳作灭火剂C.苯酚皂溶液可用于环境消毒           
下列反应既是氧化还原反应,又是吸热反应的是 A.实验室
下列反应既是氧化还原反应,又是吸热反应的是 A.实验室制备氢气                     B.灼热的碳与水的反应  C.Ba(OH)2·8H2O与NH4Cl的反
—Will you attend the meeting this afternoon?—But I ________ told anything ab
—Will you attend the meeting this afternoon?—But I ________ told anything about it. A. wasn'tB. am not C. haven't been D. won’t be
如图所示,在暗室中用手电筒照射挂在白色墙上的小镜子,
如图所示,在暗室中用手电筒照射挂在白色墙上的小镜子,这时从侧面看到被照射部分 A.墙和镜子都是黑色的        B.墙和镜子都是白色的 C.
下列物质属于纯净物的是(     ) A.氯水 B.玻璃 C.生铁 D
下列物质属于纯净物的是(     ) A.氯水 B.玻璃 C.生铁 D.液氨
The story is totally made up. If _______ it happens to be ______ anyone’s expe
The story is totally made up. If _______ it happens to be ______ anyone’s experience, we are here to apologize.   A. by coincidence; similar to        B. by accident; in coincidence with

最新题目