# Problem: A self-contained breathing apparatus uses potassium superoxide, KO2, to  convert the carbon dioxide and water in exhaled air into oxygen, as shown by this equation. 4 KO2 (s) + 4 CO2 (g) + 2 H2O (g) → 4 KHCO3 (s) + 3 O2 (g) How many molecules of oxygen gas will be produced from the 0.0468 g of carbon dioxide that is exhaled in a typical breath? a) 4.8 x 1020 b) 6.4 x 1020 c) 8.5 x 1020 d) 1.9 x 1021

85% (51 ratings)
###### Problem Details

A self-contained breathing apparatus uses potassium superoxide, KO2, to  convert the carbon dioxide and water in exhaled air into oxygen, as shown by this equation.

4 KO(s) + 4 CO(g) + 2 H2O (g) → 4 KHCO(s) + 3 O(g)

How many molecules of oxygen gas will be produced from the 0.0468 g of carbon dioxide that is exhaled in a typical breath?

a) 4.8 x 1020

b) 6.4 x 1020

c) 8.5 x 1020

d) 1.9 x 1021

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Stoichiometry concept. You can view video lessons to learn Stoichiometry. Or if you need more Stoichiometry practice, you can also practice Stoichiometry practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofA self-contained breathing apparatus uses potassium superoxi...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 2 minutes and 55 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Schvaneveldt's class at CLEMSON.