Problem: The reaction between potassium superoxide, KO2, and CO2: 4 KO2 + 2 CO2 → 2 K2CO3 + 3 O2, is used as a source of O2 and absorber of CO2 in self-contained breathing equipment used by rescue workers.How many grams of KO2 are needed to form 7.5 g of O2?

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The balanced reaction is:

4 KO2 + 2 CO2 → 2 K2CO3 + 3 O2

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Problem Details

The reaction between potassium superoxide, KO2, and CO2: 4 KO2 + 2 CO2 → 2 K2CO3 + 3 O2, is used as a source of O2 and absorber of CO2 in self-contained breathing equipment used by rescue workers.
The figure shows a rescue worker in a mask connected to an air cylinder.

How many grams of KO2 are needed to form 7.5 g of O2?

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