Find Remaining NO Concentration: 2NO + 2H2 → N2 + 2H2O, 0.006M NO, 0.002M H2

[reyrey389]

2NO + 2H2 --> N2 + 2H2O

The concentration of NO is 0.006 M and the concentration for H2 is 0.002M. How can I find the concentration of NO remaining when one-half of the original amount of H2 has been consumed?

if you can also show me how it would be done if the reaction was not 1:1, that would help a lot. thanks

 

[Borek]

Please read your private mail - click on the "Your notifications" link in the upper right corner of the page.

It is a basic stoichiometry. To simplify things you can assume 1L volume. How many moles of H₂ reacted if half was consumed? How many moles of NO reacted with this amount of hydrogen?

 

[xplosiv3s]

2NO + 2H2 --> N2 + 2H2O

The concentration of NO is 0.006 M and the concentration for H2 is 0.002M. How can I find the concentration of NO remaining when one-half of the original amount of H2 has been consumed?

if you can also show me how it would be done if the reaction was not 1:1, that would help a lot. thanks

Here the molar ratio for NO and H2 is 1:1.

We know that 1/2 of original H2 remains
0.002/2 =0.001
for every 1 NO 1 H2 gets used up
for every 0.001 NO 0.001 H2 gets used up

0.006-0.001 =0.005 NO remaining

 

[Borek]

Have you read the forum rules? Please don't do homework for others. A week passed, but it is not a reason to give final answers.