Nitrogen monoxide and oxygen react to form nitrogen dioxide. Consider the mixture of NO and O2 shown in the accompanying diagram. The blue spheres represent N, and the red ones represent O. (a) How many molecules of NO2 can be formed, assuming the reaction goes to completion?

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Hi everyone here, we have a question telling us that the following diagram shows a mixture of phosgene gas with water vapors. The reaction between the two gasses produces carbon dioxide and hydrogen chloride. And our goal is to write a balanced chemical equation for the reaction and determine how many molecules of each reactant or product will be present in the mixture when the reaction is complete. So our balanced chemical reaction will be phosgene plus water forms carbon dioxide plus hydrochloric acid. So as we can see on the left we have two chlorine and two hydrogen. And on the right we only have one. So we're gonna put a two in front of our hydrogen chloride. Now that it's balanced, we can go on to see how many molecules of each react in our product will be present in the mixture when the reaction is complete. So for molecules of carbon dioxide It will equal three molecules of phosgene Times one molecule of carbon dioxide over one molecule of Phosgene. And our molecules of phosgene are going to cancel out. And that is going to equal three molecules of carbon dioxide. Now, where you're going to do molecules of hydrogen chloride, that's going to equal three molecules of phosgene, times two molecules of hydrogen chloride over one molecule of Phosgene. And our molecules of fostering are going to cancel out and that equals six molecules of hydrogen chloride. And next we're going to do the molecules of water consumed. So that's going to be three molecules of fashion Times one molecule of water over one molecule, a phosgene and our molecules of phosgene will cancel out, And that will give us three molecules of water. So if we look at our diagram, if we consumed three molecules of water, we will have two molecules of water remaining, and those are our answers. Thank you for watching. Bye.

Nitrogen monoxide and oxygen react to form nitrogen dioxide. Consider the mixture of NO and O2 shown in the accompanying diagram. The blue spheres represent N, and the red ones represent O. (a) How many molecules of NO2 can be formed, assuming the reaction goes to completion?

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Key Concepts

Chemical Reaction Stoichiometry

Balancing Chemical Equations

Limiting Reactant