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Abstract In view of the shortcomings of the experiment of “measuring oxygen content in air” in the ninth-grade chemistry textbook of Shanghai. On the basis of the literature research, this paper designed and optimized the experiment, and made an improved plan based on the principle of oxygen absorption corrosion and communicating vessel. It had the advantages of cheap raw materials, environmentally friendly, simple device, easy operation, obvious phenomena, dynamic visibility, scientific and efficient, safe and reliable.
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