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How much oxygen is needed to completely burn 2.8 kg of ethylene?

1. 2.8 kg
2. 6.4 kg
3. 9.6 kg
4. 96 kg

Correct answer: 9.6 kg

Solution

To completely burn ethylene (C2H4), a specific stoichiometric amount of oxygen is required. The balanced chemical equation shows that for every mole of ethylene, three moles of oxygen are needed, which translates to approximately 9.6 kg of oxygen for 2.8 kg of ethylene.

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