"Laboratory Production Method of Carbon Dioxide" The World of Carbon PPT Courseware

Description

"Laboratory Production Method of Carbon Dioxide" The World of Carbon PPT Courseware

1. Independent learning

Requirement: For problems that cannot be solved by the teachers in this group, the master should ask other teachers for advice.

Session 1: Knowledge exchange

Teachers and friends first check each other’s review content

Then communicate with each other about the preview situation according to the preview outline.

Session 2: Knowledge Feedback

Communicate review and preview status collectively.

2. Mutual assistance and exploration

Information: Compounds containing carbonate ions (CO32-) can react with acids to produce CO2 at room temperature.

Common compounds containing carbonate ions (CO32-) are: sodium carbonate Na2CO3, CaCO3 (the main component of marble or limestone is CaCO3)

Common acids include: hydrochloric acid (HCl), dilute sulfuric acid (H2SO4). Concentrated hydrochloric acid is volatile.

Drugs: lump limestone, calcium carbonate powder, sodium carbonate powder, dilute hydrochloric acid, dilute sulfuric acid.

Purpose: To explore experimental drugs for producing CO2 in the laboratory

3. Common conclusion

Medicines Limestone (marble) and dilute hydrochloric acid

Reaction principle CaCO3+2HCl=CaCl2+H2O+CO2↑

Generating device Solid-liquid normal temperature

Collection method: upward air exhaust method

Inspection method: Pour in clarified lime water, the lime water becomes

The filling method is to put the burning stick on the mouth of the bottle and extinguish it.

4. Mutual assistance and improvement

Session One: Basic Exercises

1. A certain gas can only be collected by the upward air exhaust method. From this, it is inferred that its properties should be _____.

A. Insoluble in water. B. Easily soluble in water;

C. Density is lower than air D. Density is higher than air

2. The following instruments: ① Erlenmeyer flask; ② Alcohol lamp; ③ Long-neck funnel; ④ Asbestos mesh; ⑤ Air tube; ⑥ Water tank. Among them, the ones that are definitely not used when producing and collecting carbon dioxide in the laboratory are:

A.②③④ B.②④⑥ C.①⑤⑥ ​​D.①③⑤

Step 2: Expansion and extension

The picture on the right is an experimental device for producing carbon dioxide designed by several students. Compared with device A, the outstanding advantages of device B are: ___________.

5. Classroom Consolidation

Answer based on the picture on the right:

(1) Write the name of the instrument: ①____; ②____; ③____.

(2) Ammonia (NH3) is usually a colorless gas with a pungent odor. Its density is smaller than that of air and it is easily soluble in water. The aqueous solution is called ammonia water. Ammonia gas is commonly produced in laboratories by heating a solid mixture of ammonium chloride and slaked lime. Then the laboratory ammonia production device can be ____, the reason for selection is ________, and the ammonia collection device can be ____.

Session 2: Preview Check

1. What instruments and drugs are used to produce carbon dioxide in the laboratory?

2. What are the experimental steps?

3. How to collect carbon dioxide and why

4. How to test carbon dioxide? How to verify it is full?

Test: Pass the gas into the clarified lime water, shake it, and the clarified lime water will become turbid.

Check for fullness: Put the burning small wooden stick into the mouth of the gas collecting bottle. If the wooden stick goes out, it proves that the collection is full.

Keywords: The world of carbon teaching courseware, the laboratory production method of carbon dioxide teaching courseware, the Beijing curriculum reform version of the ninth grade chemistry PPT courseware download, the ninth grade chemistry slide courseware download, the world of carbon PPT courseware download, the laboratory production of carbon dioxide Download French PPT courseware in .PPT format;

For more information about the PPT courseware "Laboratory Method for Preparing Carbon Dioxide in the World of Carbon", please click the "Laboratory Method for Preparing Carbon Dioxide in the World of Carbon" ppt tag.

"Laboratory Production Method of Carbon Dioxide" World of Carbon PPT Courseware 2:

"Laboratory Preparation Method of Carbon Dioxide" The World of Carbon PPT Courseware 2 Teaching Procedures Problem raising and analysis, comparison of hypotheses, experimental re-analysis, comparison and conclusion to problem solving Question 1: What aspects should be considered when producing a gas in the laboratory? Question 2: Laboratory...

File Info

Update Time: 2024-07-06

This template belongs to Chemistry courseware Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 1 industry PPT template

Preview