Question

The thiocyanate ion (SCN-) has three possible resonance structures. Draw the three structures, calculate the formal...

The thiocyanate ion (SCN-) has three possible resonance structures. Draw the three structures, calculate the formal charges on each atom in each structure (show your work) and arrange the three structures in decreasing order of importance.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Sol:-

We know that

Formal Charge (F.C) = Number of valence electrons in atom (V) - Number of unshared electrons (U) - 1/2 x Number of shared electrons (S).

In structure I :-

F.C on S = 6 - 2 - 8/2 = 6 - 2 - 4 = 6 - 6 = 0

F.C on C = 4 - 0 - 8/2 = 4 - 4 = 0

F.C on N = 5 - 6 - 2/2 = 5 - 6 - 1 = 5 - 7 = - 2

In structure II :-

F.C on S = 6 - 4 - 4/2 = 6 - 4 - 2 = 6 - 6 = 0

F.C on C = 4 - 0 - 8/2 = 4 - 4 = 0

F.C on N = 5 - 4 - 4/2 = 5 - 4 - 2 = 5 - 6 = - 1

In structure III:-

F.C on S = 6 - 6 - 2/2 = 6 - 6 - 1 = 6 - 7 = -1

F.C on C = 4 - 0 - 8/2 = 4 - 4 = 0

F.C on N = 5 - 2 - 6/2 = 5 - 2 - 3 = 5 - 5 = 0

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
5. Draw the Lewis structures for the nitrate ion. (There are three resonance structures.) Using these...
5. Draw the Lewis structures for the nitrate ion. (There are three resonance structures.) Using these Lewis structures describe the bonding in the nitrate ion. a) What is the geometry about all of the atoms: what is the geometry about the central N atom? What is the electron domain geometry of the oxygen atoms? What are the hybrid orbitals on the N and O atoms in the ion? b) How many sigma bonds are in this ion? Which orbitals overlap...
Draw the Lewis structures for the resonance forms of methyl azide (CH3N3). Draw all possible resonance...
Draw the Lewis structures for the resonance forms of methyl azide (CH3N3). Draw all possible resonance structures by copying the skeleton shown. Edit bonds and charges to complete each resonance structure. ***The program does not allow for the addition of electrons. How can I draw the structures with only bonds and charges?**** 2.) Determine the electron geometry about each interior atom for all resonance structures. Check all that apply.****** Check all that apply.******* a. C tetrahedral; 1st N tetrahedral; 2nd...
part a.) Draw Lewis structure(s) showing all possible equivalent resonance forms for the nitronium ion (...
part a.) Draw Lewis structure(s) showing all possible equivalent resonance forms for the nitronium ion ( NO2+ ). Draw one structure per sketcher box, and separate any added sketcher boxes with the ↔ symbol. Do NOT show any ion charges in your drawings. Do not draw double bonds to oxygen unless they are needed for the central atom to obey the octet rule. NO2+ : part b.) What is the bond order of the N - O bonds in the...
± Common-Ion Effect on Solubility for Lead Thiocyanate Lead thiocyanate, Pb(SCN)2, has a Ksp value of...
± Common-Ion Effect on Solubility for Lead Thiocyanate Lead thiocyanate, Pb(SCN)2, has a Ksp value of 2.00×10−5. Part A Calculate the molar solubility of lead thiocyanate in pure water. The molar solubility is the maximum amount of lead thiocyanate the solution can hold. Express your answer with the appropriate units. SubmitHintsMy AnswersGive UpReview Part Common-Ion Effect Consider the dissolution of AB(s) : AB(s)⇌A+(aq)+B−(aq) Le Châtelier's principle tells us that an increase in either [A+] or [B−] will shift this equilibrium...
Cyaphide is the phosphorous analog to the cyanide ion, with phosphorous replacing nitrogen. a) Draw the...
Cyaphide is the phosphorous analog to the cyanide ion, with phosphorous replacing nitrogen. a) Draw the Lewis dot structure for the cyaphide ion and give the formal charges on each atom. Are the formal charges consistent with electronegativity? b) Draw a molecular orbital energy diagram for the cyaphide ion. Give the bond order. Is the bond order consistent with the Lewis structure?
a) Draw a Lewis diagram for TeO42- in which the central Te atom has a formal...
a) Draw a Lewis diagram for TeO42- in which the central Te atom has a formal charge of zero and show all NONZERO formal charges on all atoms. Note that the overall charge on this ion is -2. b) Draw a Lewis structure for TeO42- in which the octet rule is satisfied on all atoms and show all NONZERO formal charges on all atoms. Note that the overall charge on this ion is -2. c) Which structure would best represent...
PART B ONLY Common-Ion Effect on Solubility for Lead Thiocyanate Lead thiocyanate, Pb(SCN)2 , has a...
PART B ONLY Common-Ion Effect on Solubility for Lead Thiocyanate Lead thiocyanate, Pb(SCN)2 , has a Ksp value of Part A Calculate the molar solubility of lead thiocyanate in pure water. The molar solubility is the maximum amount of lead thiocyanate the solution can hold. Express the molar solubility numerically. Hints SubmitMy AnswersGive Up Correct Part B Calculate the molar solubility of lead thiocyanate in 0.700 M KSCN . Express the molar solubility numerically. M 1.71×10−2 M
1)Which of the following is/are the possible methods of deciding which atom in the CN- ion...
1)Which of the following is/are the possible methods of deciding which atom in the CN- ion has more negative charge? Both methods mentioned. Determine which atom is more electronegative. Neither method mentioned is valid. Determine the formal charge of each atom in the ion. 2)According to VSEPR theory, molecules generally adopt a structure that separate electron pairs as far away from others as possible around the central atom of the molecule. has the smallest number of valence electrons. has the...
Draw the correct Lewis structure and calculate the formal charge of each atom in the N2O...
Draw the correct Lewis structure and calculate the formal charge of each atom in the N2O molecule (N is the central atom.). Use the resonance structure of the molecule N=N and N=O bonds, (i.e., N=N=O) to determine the formal charges. A. N = 0; N = –1, O = +1 B. N = +1; N = 0, O = -1 C. N = -1; N = +1, O = 0 D. N = 0; N = 0, O = 0...
1. The following molecules or ions have two or more resonance structures. Show all of the...
1. The following molecules or ions have two or more resonance structures. Show all of the resonance structures for each species. Include all formal charges on the atoms. Circle the resonance structure that would be most stable for each compound. a. SO​2 b. CO​​​​3​2- ​​d. N3- ​e. NOF f. OCN​-
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT