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A 2.50 -L sample of a colorless gas at STP decomposed to give 2.50 $\mathrm{L}$ of $N_{2}$ and 1.25 $\mathrm{L}$ of $\mathrm{O}_{2}$ at $\mathrm{STP}$ . What is the colorless gas?

$\mathrm{N}_{2} \mathrm{O}$

01:17

Aadit S.

Chemistry 101

Chapter 9

Gases

Rice University

University of Kentucky

Brown University

University of Toronto

Lectures

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So we continue on with our ideal gas slows, and so PV equals. And Artie, we've seen this so many times before. We know that volume could be proportional to models, standard temperature and pressure, and so we have the production of 2.5 m. Event too, indicates that two moles of nitrogen gas is produced on decomposition of colorless gas, indicating that to nitrogen atoms is present in the original compound. Moving on. Now the formation of 1.25 liters are about to indicates that one mole of oxygen gas is produced on decomposition and in the one oxygen atom is present in the original compound. So using this reasoning, we can right out a chemical decomposition equation that's two and 20 that's an equilibrium with two and two at 02 So the molecular formula of the compound is to an O. We have and Thio

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