Draw the Lewis structure for the ammonia molecule. Be sure to include all resonance structures that satisfy the octet rule.
1 answer:
Answer:
Attached Lewis structure
Explanation:
To draw the Lewis structure, we need to consider the octet rule: atoms will gain lose or share electrons to complete their valence shell with 8 electrons. Hydrogen is an exception because it is completed with 2 electrons (duet). N and H are nonmetals so they form covalent bonds, that is, they share electrons.
- N has 5 valence electrons, so it has to share 3 pairs of electrons.
- Each H has 1 valence electron, so it has to share 1 pair of electrons.
The Lewis structure is attached and there are no resonance structures since there are no pi electrons.
You might be interested in
The answer is 4.9 moles of salt will be needed to add to 1 kg of water to change the boiling point by 5 °C.
<h3>What is Boiling Point Elevation ?</h3>Boiling point elevation is the phenomenon that occurs when the boiling point of a liquid (a solvent) is increased when another compound is added, such that the solution has a higher boiling point than the pure solvent.
Boiling point elevation occurs whenever a non-volatile solute is added to a pure solvent.
ΔT = i * Kb * m
where m, Kb and i are the molality of solution, ebullioscopic constant and Van't Hoff factor respectively
The data given in the question is ΔT = 5 °C
mass of solvent = 1 kg
Kb = 0.51 °C/(mol/kg)
Van't Hoff Factor for NaCl is 2
Substituting the values in the above equation
moles of salt = 4.9
Therefore 4.9 moles of salt will be needed to add to 1 kg of water to change the boiling point by 5 °C.
To know more about Boiling point elevation
#SPJ1