Final answer:
To draw the Lewis structure of N-methylacetamide, identify the amide and methyl components and arrange the atoms to ensure full octets for carbon and nitrogen and a complete duet for hydrogen, with special attention to the double bond between the central acetyl carbon and oxygen.
Step-by-step explanation:
To draw the Lewis structure of N-methylacetamide, we'll start by considering the atoms involved and their valence electrons. N-methylacetamide has a structure where an amide group (-CONH-) is attached to a methyl group (CH3) and to the rest of the acetyl group (CH3CO-).
The central carbon of the acetyl group (C) is double-bonded to an oxygen (O) and single-bonded to another carbon (C). This other carbon is part of the methyl group and is single-bonded to three hydrogens (H) and the nitrogen (N) of the amide. The nitrogen is single-bonded to two hydrogens and to the carbon of the methyl group. The remaining bond of the nitrogen atom is a single bond to the carbon of the acetyl group.