ammonium cyanate when heat what it forms????
when it rearranges it's structure on heating?????
Answers
Answer:
The reaction you're describing is called the
W
..
o
hler synthesis
.
The idea here is that you decompose ammonium cyanate,
NH
4
CNO
by heating, forming ammonia,
NH
3
, and cyanic acid,
HCN
.
These two compounds will then react to form urea,
CO
(
NH
2
)
2
.
So, how do you know what the formula of the cyanate ion present in the ammonium cyanate is? Look at the chemical formula of urea.
Urea contains
one carbon atom
one oxygen atom
two nitrogen atoms
four hydrogen atoms
You know for a fact that the ammonium ion,
NH
+
4
, contains
one nitrogen atom
four hydrogen atoms
Well, if urea is the only product of the decomposition reaction, then all of the atoms that are a part of the urea molecule must have been a part of the ammonium cyanate - think the Law of mass conservation.
More specifically, since, four hydrogen atoms and one nitrogen atom are accounted for by the ammonium ion, you get that the cyanate ion must have contained
one carbon atom
one oxygen atom
only one nitrogen atom
Therefore, you can say for sure that balanced chemical equation for this reaction was
NH
+
4
CNO
−
heat
−−→
CO
(
NH
2
)
2
or, if you want to write the complete process, you have
NH
+
4
CNO
−
heat
−−→
NH
3
+
HCN
→
CO
(
NH
2
)
2
Explanation: