Homework Answers
If chemical reactions are occurring in the atmosphere, it is open system. So, we don't need to generate oxygen gas in situ.
Atmosphere will supply the oxygen required for the reactions as our atmosphere contains 20℅ oxygen gas approximately.
In this case, we should avoid the chemicals that generate oxygen because oxygen producing chemicals may react with other substances of reaction.
Therefore, option-4 is the correct answer.
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Experiment 12: Generating Hydrogen Gas Post-lab 1. A sample of potassium chlorate is heated, and decomposes according to the balanced chemical equation shown below. 2 KC1O36) ► 2 KCI) + 3 02 (3) A 0.728 g sample of KCIO, produces 216 mL of oxygen gas collected over water at 22C and an atmospheric pressure of 762 mmHg. Determine the actual yield, theoretical yield, and percent yield of oxygen gas:
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