The amount of oxygen required for the complete combustion of 2.8 kg of ethylene () is: — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
The amount of oxygen required for the complete combustion of 2.8 kg of ethylene ($C_2H_4$) is:
Answer: A
💡 Solution & Explanation
$C_2H_4 + 3O_2 \rightarrow 2CO_2 + 2H_2O$. 28g ethylene needs $3 \times 32 = 96\text{g } O_2$. So 2.8 kg needs 9.6 kg $O_2$. [4]
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