A Lungful of Air (500 ML)contains 4

question 81

Multiple Choice

A lungful of air (500 mL) contains 4.1% CO₂ by volume.How many grams of KO₂(s) is needed to remove the CO₂ from a lungful of air at STP according to the following reaction? 4 KO₂(s) + 2 CO₂(g) → 2 K₂CO₃(s) + 3 O₂(g)

• A)0.065 g
• B)0.13 g
• C)0.26 g
• D)1.2 g

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