People's Education Press High School Chemistry Compulsory Course I
Cantonese Education Edition Ninth Grade Chemistry Volume 1
People's Education Press Ninth Grade Chemistry Volume 1
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Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 2
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Hunan Education Edition Ninth Grade Chemistry Volume 1
Cantonese Education Edition Ninth Grade Chemistry Volume 2
People's Education Press Ninth Grade Chemistry Volume 2
People's Education Press High School Chemistry Compulsory Course 2
Hunan Education Edition Ninth Grade Chemistry Volume 2
Lu Ke Edition High School Chemistry Compulsory Course 2
Lu Jiao Edition Ninth Grade Chemistry Volume 2
!["Preparing a solution with a certain amount and concentration of a certain substance" experimental activity PPT](https://resources2020.oss-cn-beijing.aliyuncs.com/resources2020/de78538c4fd8940c6036a909992556f5.jpg)
Category | Format | Size |
---|---|---|
People's Education Press High School Chemistry Compulsory Course I | pptx | 6 MB |
Description
"Preparing a solution with a certain amount and concentration of a certain substance" experimental activity PPT
Part One: [Purpose of Experiment]
1. Practice how to use the volumetric flask.
2. Practice preparing solutions with a certain amount and concentration of a substance.
3. Deepen your understanding of the concept of quantity and concentration of substances.
[Experimental equipment and reagents]
Equipment: beaker, 100 mL volumetric flask, plastic tip dropper, measuring cylinder, glass rod, medicine spoon, tray balance, filter paper.
Reagents: NaCl solid, distilled water.
[Experimental process and conclusion]
1. Prepare 100 mL of 1.00 mol·L-1 NaCl solution
2. Prepare 100 mL with 1.00 mol·L-1 NaCl solution
0.50 mol·L-1 NaCl solution
Preparing a solution with a certain concentration of a substance PPT, part 2 content: [Problem Discussion]
1. After pouring the solution in the beaker into the volumetric flask, why do you use a small amount of distilled water to wash the glass rod and the inner wall of the beaker 2 to 3 times, and then pour the washing liquid into the volumetric flask?
Tip: The purpose is to completely transfer the solute remaining in the beaker and glass rod to the volumetric flask. If this step is not performed, the concentration of the prepared solution will be too small.
2. Use a graduated cylinder to measure 5.8 mL of concentrated sulfuric acid and pour it into a 100 mL volumetric flask, then add water to make up the volume to prepare a sulfuric acid solution of a certain concentration. Is this OK?
Tip: No. Concentrated solutions cannot be diluted directly in volumetric flasks, but should be done in beakers.
Keywords: PPT courseware for high school chemistry compulsory course 1 from the People's Education Press is available for free download, PPT download for preparing a solution with a certain concentration of a substance, PPT download for experimental activities, .PPT format;
For more information about the PPT courseware "Experimental Activity Preparing a Solution with a Certain Substance Concentration", please click the Experimental Activity ppt Preparing a Solution with a Certain Substance Concentration ppt tag.
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File Info
Update Time: 2024-08-16
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Preview
![《配制一定物质的量浓度的溶液》实验活动PPT
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![《配制一定物质的量浓度的溶液》实验活动PPT
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