Can someone tell me if this is right please?

 

Theoretical yield of H2SO4:

Relative atomic masses: H = 1; S = 32; O = 16; N = 14

Molecular mass of sulphuric acid H2SO4 = (1 x 1) + 32 + (16 x 4) = 97

Molecular mass of ammonia solution NH3 = 14 + (1 x 3) = 15

Molecular mass of sulphuric acid H2SO4 = (1 x 1) + 32 + (16 x 4) = 97

You only considered one H atom. But it´s H2...

 

Just out of curiosity: Why did you post that under the relativistic physics section and not in the chemistry sections?

 

EDIT: Seems that Baby Baggins did post it in the chemistry section, too: http://www.scienceforums.net/forum/showthread.php?t=24730 . I propose that further replies should go there.