[Krashy]

Hello, i´m having a bit of trouble with one exercise.

For the synthesis of ammonia a gas mixture is required in which [N2] : [H2] = 1:3
The air has the following composition:

78 volume percent nitrogen,
21 volume percent oxygen,
1.0 volume percent argon. (argon does not interfere)

The purified air is mixed with hydrogen gas.
By means of a spark all of the oxygen is forced to react with hydrogen gas. After condensation and removal of the
formed water vapor one has been obtained exactly the desired gas mixture for the ammonia synthesis.

Calculate how many dm^3 hydrogen, for that purpose, with 100 dm^3 purified air is mixed.
The volumes of the gases are in each case measured under the same conditions.


-> the purified air is 100 dm^3, but only 78 volume percent is nitrogen and in accordance with the ratio hydrogen needs to be at least 234 dm^3.

I´m really not sure if this is right. I kinda think i forgot something. Thanks for any help

[AWK]

You forgot about oxygen reaction.

[Krashy]

oh yeah, thank you