Question

PROCEDURE SAFETY NOTES ecause no chemicals will be used in this labs the use of soles and normal safety dress code be unnecessary. You should still wash your hands prior to leaving the lab since chemic residue is everywhere in a laboratory IDENTIFYING MOLECULES BY STRUCTURE 1. Below are three resonance structures for the thiocyanate ion. T:S-C=n:] [s=c=n:] [:S=C-N:] F A с но в Calculate the formal charge on the atoms indicated by the letters below. Which of the three structures is the most stable?

Answer 1

Formal charge = valence electons - Non bonding - Bonding den eleemon Now, wo A=4-0-& =4-4 50] e = 5-2- ? A=0 C=0 E = -2 H = 0 E = 5-6-? ON = 5-6-1 H = 6-4 4 4 = 6-4-2 =o1 The most stable structur - S- een [is-en] Hare the negative charge over which in stable. s'atom