For the molecular formula CH3NO: Draw a valid Lewis structure, showing all lone pairs of electrons. Draw a second, valid, and distinct Lewis structure from the first, again showing all lone pairs 1) For each structure you drew, indicate which bond is most polar, and provide your reasoning. You should look up Pauling electronegativity values to answer this question. 2) 3) For the bond you chose as the most polar in each structure, provide a molecular orbital description (not diagram!) of the bonding orbital overlaps. 4) For each structure you drew, indicate the hybridization of the carbon atom, the nitrogen atom, and the oxygen atom. 5) For the carbon atom in each structure, what is the hybridization? What is the shape around that carbon atom?
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.
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