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chemical formula and bond polarity

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Problem 4.36.Write the correct formula for the following compounds.
Part A. aluminum chlorate

Part B. ammonium oxide

Part C. magnesium bicarbonate

Part D. sodium nitrite

Part E. copper(I) sulfate

Problem 4.40. State the number of valence electrons, bonding pairs, and lone pairs in each of the following electron-dot formulas.

Problem 4.66. For each of the following bonds, indicate the positive end with and the negative end with. Write an arrow to show the dipole for each.

Part A. Si-Cl

Part B. Se-F

Part C. Br-F

Part D. N-H

Part E. N-P

Problem 4.52. Name the following covalent compounds.
Part A. CS2

Part B. P2O5

Part C. Cl2O

Part D. PCl3

Part E. IBr3

Part F. SO3

Problem 4.78. Identify the following molecules as polar or nonpolar.
Part A. H2S

Part B. PBr3

Part C. SiCl4

Part D. SO2

Problem 4.88. Write the formula of the following ionic compounds.

Part A. Tin(IV) oxide

Part B. Iron(III) sulfide

Part C. Lead(IV) sulfide

Part D. Chromium(III) iodide

Part E. Lithium nitride

Part F. Gold(I) oxide

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Solution Summary

Chemical formulas and bond polarity are investigated in the following posting. The solution was rated '5/5' by the student who posted the questions originally.

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Organic Structures: Polarity and Electron-Dot Formulas

Please see the attachment for a better formatting of these questions.

1) Draw a structural formula for each of the following molecules. Which bonds are polar? Indicate the polarity by proper placement of the symbols d+ and d-.
a. CH3Cl
b. H2

2) Draw structural formulas for all possible isomers having the following molecular formulas:

3) Write electron-dot formulas for the following ionic species. Show the formal charges on individual atoms in each ion.

bisulfite ion, HSO3¯
ammonium ion, NH4+
carbonate ion, CO32¯
carbon dioxide, CO2
chlorate ion, ClO3¯
chlorite ion, ClO2¯

4) Fill in any electron pairs that are missing from the following formulas:


b. CH3OCH3

(double bond) between the O and C

5) Use lines, dashed wedges, and solid wedges to show the geometry of CH4, CH2Cl2, and CF3OH.

6) Write a structural formula that corresponds to the molecular formula C6H12O and is:
- Acyclic
- Carbocyclic
- Heterocyclic

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