The reaction between potassium superoxide, KO2, and CO2, 4 KO2 + 2 CO2¡2K2CO3 + 3 O2 is used as a source of O2 and absorber of CO2 in selfcontained breathing equipment used by rescue workers. (a) How many moles of O2 are produced when 0.400 mol of KO2 reacts in this fashion?

Video transcript

Hello everyone today. We have the falling problem, Soda lime and nitrogen dioxide can react according to the following reaction. This demonstrates how are calcium hydroxide can be used to absorb nitrogen dioxide gas? How many moles of nitrogen dioxide gas can be absorbed? 1.367 moles of calcium hydroxide reacts in this manner. So the first thing I wanna do is you want to take what we were given which was 0.367 moles of our calcium hydroxide. And we want to multiply by a multiple ratio of calcium hydroxide, two moles of nitrogen dioxide. So what we're gonna do is we're going to use the coefficient that we have the calcium hydroxide which was two moles of calcium hydroxide. And we see that that reacts with our formals of nitrogen dioxide which is going to go in the numerator. So you have formals of nitrogen dioxide And then we're gonna multiply that so that our units will cancel out to be left with 0.734 moles of nitrogen dioxide as our final answer. And with that we have answered the question overall, I hope this helped. And until next time