CSCAPrep
Reviewed CSCA STEM Chinese question · Standard

在实验室配制一定物质的量浓度的溶液时,需要用_来准确量取一定体积的液体。

  1. 量筒
  2. 容量瓶
  3. 移液管
  4. 烧杯
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Correct answer

C. 移液管

Principle or equation

移液管用于准确量取一定体积的液体,精度较高;量筒精度较低,容量瓶用于配制溶液,烧杯用于粗略量取或反应容器。

Why this answer is correct

题目要求“准确量取一定体积的液体”,移液管符合此要求。

Example

用移液管准确量取 25.00 mL 溶液。

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