Stoichiometry (composition of CO₂): How many moles of CO₂ contain 16 g of oxygen? Use the fact that each mole of CO₂ contains 32 g of oxygen (two O atoms). Choose the correct value.

Q: Stoichiometry (composition of CO₂): How many moles of CO₂ contain 16 g of oxygen? Use the fact that each mole of CO₂ contains 32 g of oxygen (two O atoms). Choose the correct value.

Given data CO₂ has 2 oxygen atoms ⇒ 32 g O per 1 mol CO₂. Required oxygen mass = 16 g. Step-by-Step Moles of CO₂ = (16 g O) ÷ (32 g O per mol CO₂) = 0.5 mol CO₂ Final Answer 0.5 mole

Difficulty: Easy

0.5 mole
0.2 mole
0.4 mole
0.25 mole

Correct Answer: 0.5 mole

Explanation:

Given data

CO₂ has 2 oxygen atoms ⇒ 32 g O per 1 mol CO₂.
Required oxygen mass = 16 g.

Step-by-Step
Moles of CO₂ = (16 g O) ÷ (32 g O per mol CO₂) = 0.5 mol CO₂

Final Answer
0.5 mole

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