Actually, I am a science
teacher!
The teacher in me has to say this:
0.3 is more than a 10% error, unfortunately, with that type of error you can't get more than a B- on your lab report.
(DM, you should know that you can't just trust sources found on the internet, you need to verify their accuracy for yourself!
)
(For anyone interested in the math...)
NH3:
N: 14. g/mol
H: 1.0 g/mol
So, 1.0 mol of NH3 = 17. g/mol
NO2:
N: 14. g/mol
O: 16. g/mol
So, 1.0 mol of NO2 = 46 g/mol
NO3:
N: 14. g/mol
O: 16. g/mol
So, 1.0 mol of NO3 = 62 g/mol
1.0 ppm (or g/ml) of NH3 would then convert to 46/17 or approximately 2.7 g/mol (as measured to 2 sig figs
) The key here kids is that the same nitrogen atom gives up its hydrogen to get oxygen... which increases its mass/volume ratio. (And for anyone who has actually read this much and is still interested, nitrate would be processed as 3.6ppm.)
EDIT: Not checking the source. I
am the source!
Just making sure that the work was all accurate before I posted.