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    188宝金博页面版: LABORATORY TECHNIQUE AND EQUIPMENT …

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    内容提示： LABORATORY TECHNIQUE AND EQUIPMENT EXPERIMENT 1 OBJECTIVE The objective of this experiment is to familiarize the student with the use of basic laboratory equipment and simple chemical laboratory techniques. CHEMICALS AND EQUIPMENT Fisher burner Evaporating dish Glass tubing Crucible Glass rods Filter paper Triangular file Ring stand and clamp Glass funnel Triple beam balance Test tubes (2) 0.15M Zn(NO 3 ) 2 - Zinc nitrate Beaker (250 ml) 0.1M K 2 CrO 4 - Potassium chromate...

    文档格式：PDF | 页数：12 | 浏览次数：41 | 上传日期：2016-03-22 14:02:32 | 文档星级：
    LABORATORY TECHNIQUE AND EQUIPMENT EXPERIMENT 1 OBJECTIVE The objective of this experiment is to familiarize the student with the use of basic laboratory equipment and simple chemical laboratory techniques. CHEMICALS AND EQUIPMENT Fisher burner Evaporating dish Glass tubing Crucible Glass rods Filter paper Triangular file Ring stand and clamp Glass funnel Triple beam balance Test tubes (2) 0.15M Zn(NO 3 ) 2 - Zinc nitrate Beaker (250 ml) 0.1M K 2 CrO 4 - Potassium chromate Flask (250 ml) DISCUSSION Chemistry is an experimental science. To perform the experimental work, a sound foundation in experimental techniques and familiarization with the equipment is essential. The first experiment will help with the basic techniques and equipment that you will use throughout the rest of the course. Your success in future experiments will depend on the mastering of these operations. Beakers Beakers are cylindrical containers with wide mouths. Beakers are used when the entire area of the container must be easily accessible. Bakers are the "everyday" glassware of chemistry. Erlenmeyer Flasks Erlenmeyer flasks are conical cylinders in which the mouth is smaller than the bottom. Flasks are used for applications where "splattering" of materials must be avoided. Flasks are also commonly used for storage of liquids since the mouth is easily stoppered.

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