Posted by **Cindy** on Sunday, October 13, 2013 at 9:25pm.

25cm^3 of a gas containing only nitrogen and oxygen decomposed to form 25cm^3 of nitrogen and 50cm^3 of oxygen. All the volumes were measured at the same temperature and pressure. Write an equation for the reaction.

- Chemistry -
**DrBob222**, Monday, October 14, 2013 at 1:34am
2*N_{x}O_{y} = xN2 + yO2

Using the coefficients in the balanced equation, convert cc N2 to cc NxOy and solve for x AND

convert cc O2 to cc NxOy and solve for y like this.

25cc N2*(2mols NxOy/x molN2) = 25 cc NxOy. Then

25*(2/x) = 25 and x = 50/25 = 2

For y,

50 cc O2*(2 mols NxOy/ymol O2) = 25 cc NxOy

Finally 50*2/y = 25 and y = 100/25 = 4

So x = 2 and y = 4 so NxOy must be N2O4. We can check that this way.

N2O4 ==> N2 + 2O2

25cc....25cc...50cc

Start with 25 cc N2 will give us 25 cc N2O4 and 50 cc O2.

Start with 50 cc O2 and we would expect 25 cc N2 and 25 cc N2O4.

N2O4 must be right.

## Answer This Question

## Related Questions

- Chemistry - Use Henry's law and the solubilities given below to calculate the ...
- chemistry - Use Henry's law and the solubilities given below to calculate the ...
- Chemistry - Use Henry's law and the solubilities given below to calculate the ...
- chem - Use Henry's law and the solubilities given below to calculate the total ...
- chem 102 - Use Henry's law and the solubilities given below to calculate the ...
- chemistry - Condition Pressure Volume Temperature Comment initial 1.0 atm 22.4 L...
- Chemistry - Under certain conditions, nitrogen gas reacts with oxygen gas to ...
- oxford-chemisrty - if the total pressure of a container filled with oxygen gas, ...
- chemistry - Ammonia reacts with oxygen gas to form nitrogen monoxide and water. ...
- Chemistry - nitrogen reacts with oxygen to form 2 compounds. Compund A contains ...

More Related Questions