B is the correct answer to your question
I believe it is "empirical formula"
Answer:
0.5 moles
Explanation:
At STP,
<u><em>Every 22.4 L of carbon dioxide contains 1 mole of gas.</em></u>
<u><em /></u>
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Solving :
⇒ 22.4 L : 1 mole
⇒ 22.4 × 0.5 : 1 × 0.5
⇒ 11.2 L : 0.5 moles
