"Concentration of Solution" Solution PPT (Lesson 1)

Description

"Concentration of Solution" Solution PPT (Lesson 1), 20 pages in total.

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Common solutions in production and life (labels)

Alcohol content of wine

The concentration of white vinegar

learning target

1. Master the concept of mass fraction of solute in a solution;

2. Be able to calculate the mass fraction of the relevant solute.

Teach a new lesson

solution concentration

[Experiment 9-7] Add 0.1g, 0.5g, and 2g solid copper sulfate to each of the three test tubes, and then add 20mL of water respectively. Compare the colors of the three solutions.

For colored solutions, the depth of the color can determine whether the solution is concentrated or dilute. However, this method is relatively crude and cannot accurately indicate how much solute is contained in a certain amount of solution.

discuss

Judging the concentration of a solution by observing its color is only a rough method of judging the concentration of a solution.

We should learn from the way merchants introduce products to consumers by clearly indicating the composition of the solution. There are many ways to express the composition of a solution. Here we mainly understand the mass fraction of the solute.

Class summary

1. What is the mass fraction of solute?

2. The connection and difference between solute mass fraction and solubility:

At a certain temperature: the solute mass fraction of a saturated solution of a substance

Keywords: Free download of PPT courseware for the second volume of the ninth grade of Chemistry published by the People's Education Press, PPT download of the concentration of the solution, PPT download of the solution, .PPT format;

For more information about the "Concentration of Solution" PPT courseware, please click on the "Concentration of Solution PPT" PPT tab.

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Update Time: 2024-07-30

This template belongs to Chemistry courseware People's Education Press Ninth Grade Chemistry Volume 2 industry PPT template

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