Chemistry 100 help

Question

Potassium superoxide (KO₂) is used in some rebreathers used for fire fighting and mine rescues. It absorbs exhaled carbon dioxide (CO₂) and releases molecular oxygen (O₂) according to the following reaction:

 

4 KO₂ + 2 CO₂ → 2 K₂CO₃ + 3 O₂

 

How many grams of CO2 are produced from the complete reaction of 190.14 grams of KO₂?

Answer 1

The question doesn't make sense, because there is NO CO₂ produced by the reaction of KO₂. CO₂ is a reactant, so maybe you meant to ask how many grams of CO₂ are consumed?

Molar mass KO₂ = 71.097 g/ mol

Molar mass CO₂ = 44.01 g/mol

4 KO₂ + 2 CO₂ → 2 K₂CO₃ + 3 O₂

190.14 g KO₂ x 1 mol / 71.097 g x 2 mol CO₂ / 4 mol KO₂ x 44.01 g CO₂/ mol = 58.85 g CO₂ consumed