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Multiple Choice
Calculate the totalchargeof themolecule
A
-2
B
-1
C
0
D
+1
Verified step by step guidance
1
Identify the atoms in the molecule and their typical valences: Carbon (C) typically forms 4 bonds, Oxygen (O) typically forms 2 bonds, Nitrogen (N) typically forms 3 bonds, and Hydrogen (H) forms 1 bond.
Examine the structure to ensure each atom satisfies its typical valence. Count the bonds around each atom: Carbon atoms should have 4 bonds, Oxygen should have 2 bonds, Nitrogen should have 3 bonds, and Hydrogen should have 1 bond.
Check for any formal charges on the atoms. Formal charge can be calculated using the formula: Formal Charge = (Valence electrons) - (Non-bonding electrons) - (Bonding electrons/2).
Calculate the formal charge for each atom in the molecule. For example, for the nitrogen atom, count the lone pairs and bonds to determine if it has a formal charge.
Sum the formal charges of all atoms in the molecule to determine the total charge of the molecule. If all atoms have a formal charge of zero, the total charge of the molecule is zero.