For the following molecules, provide ALL possible resonance structures. Calculate the formal charge for each atom in the molecule. Determine which structure is the major contributing structure for the resonance hybrid. Explain WHY it is preferred over the others. Remember your rules for setting up Lewis-dot structures. Use additional sheets of paper if necessary. Upload to the CAP area in Blackboard as directed. a) HCO₂ b) SO3 c) Cl₂CO d) OCN™
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
PLEASE NOTE: This question has been answered, but DID NOT INCLUDE THE “DOTS” for the Lewis-dot structure. I'm needing someone to ADD THE “DOTS” and hand-draw, please. I am completely and totally lost with how to do these!!!!
For the following molecules, provide ALL possible resonance structures. Calculate the formal charge for each atom in the molecule. Determine which structure is the major contributing structure for the resonance hybrid. Explain WHY it is preferred over the others. Remember your rules for setting up Lewis-dot structures. a) HCO2- b) SO3 c) Cl2CO d) OCN-
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