Select the correct structure that
2 answers:
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Answer:
12.3 moles of are produced by reacting 18.4 moles of
.
Explanation:
Balanced reaction:
According to balanced equation:
3 molecules of produce 2 molecules of
So molecules of
produce
molecules of
(
is avogadro number).
We know 1 mol of molecule = number of molecules.
So 3 moles of produce 2 moles of
.
Hence 18.4 moles of produce
moles of
or 12.3 moles of
.
Answer:
<u>One lone-Pair is present in Ammonia</u>
<u></u>
Explanation:
The number of valence electron in N = 5
The number of Valence electron in H = 1
The formula of ammonia = NH3
Total valence electron in ammonia molecule = 5 +3(1) = 5+3 = 8
The lewis structure suggest that :
Nitrogen completes its octet by sharing the electron pair with 3 hydrogen atoms.
3 electron of Nitrogen are involved in sharing with Hydrogen
So,<u><em> remaining two electron are left non-bonded</em></u> . Hence they exist as lone- pair
So, there is only 1 lone pair in the ammonia molecule .
The shape of NH3 is bent according to VSEPR theory . This is so because the presence of 1 lone pair causes more repulsion and occupy more space.
Thus the lone pair is changing the shape of the ammonia molecule . It also increase the dipole moment of the molecule , which gives polarity to it.
