In 1h nmr, a triplet with an integration of 3 is often seen next to a quartet of integration of 2 below 2 ppm. What structural moiety (fragment, or piece of a molecule) does this likely represent?.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

the maximum mass of nh3 is nh3 in grams