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Bonding in Co-Ordination chemistry

How is it possible that [Co(h20)6]3+ will oxidize water but [Co(Nh36]3+ is stable in aqueous solution? Both are mondentate ligands. I thought the proximity of the nitrogens after one has bonded to the cobalt would make it more likely to react, because the entropy would be lowered. They are also both low spin complexes.

Structures of Solids

My professor gave us this and told us that some of these problems will be on our test. I just want to make sure I know how to do all of them correctly. Thanks! 1. When describing structures of solids, especially ionic solids, structure types are typically associated with the structures of well-known species. If a system we

Inorganic Thermodynamics

The alkali metal hexachloroplatinates: Na2[PtCl6], K2[PtCl6], Rb2[PtCl6], Cs2[PtCl6] have the same type of lattice structure. How would you expect the solubility of these salts to vary (increase or decrease) from the sodium salt to the cesium salt? Explain your answer.


Please give complete answers and details on how to think about these problems. Also, explain reasoning on how you get your answer please! Predict the signs of q and w for the following: A. Condensing water in an exothermic process at P=1 atm and T=370K. H20(g) -> H20(l) B. Subliming CO2(dry ice) - an endothermic pro

Don't understand

One of the steps in writing the Lewis formulas of covalently bonded molecules is to add up the total number of valance electrons from the atoms involved. What are the total number of of such electrons for the following? A)CH4 B) SO3 C)H2S D) NH3 E N2

Ionic Bonding

The alkaline earth oxides MgO and BaO adopt the rock salt (NaCl) structure with cell parameters a of 4.213 à... and 5.139 à.... Using 1.40 à... as the radius for the oxide ion: a) Calculate the radius ratios r(M2+) / r(O2-) for these compounds b) Using the radius ratio rule, indicate whether or not the value found are i

Ionic Bonding

A certain form of AgI adopts the zinc blend (ZnS & FCC) structure. The density of the salt is 5.69 g/cm3. a) Calculate the length of a side of the unit cell b) Calculate the distance between the Ag+ and the I- ions in the structure.

Determining hybridization and molecular shape

1.)For each of the following covalent compounds deduce their molecular shape and the possible hybridization of the central atom: a.) indium(I)iodide b.)tin(II)bromide c.)antimony tribromide d.)tellurium tetrachloride e.)iodine pentafluoride 2.) Determine the electron pair arrangement and the molecular shape according to

Bond Order, Bond Angles and Electron-Dot Diagrams

1) Assuming that it has similar molecular orbital energies to those of carbon monoxide, deduce the bond order of the NO+ ion. 2) construct electron-dot diagrams for a) oxygen difluoride b) phosphorus trichloride c) xenon difluoride d) tetrachloroiodate ion, ICl4^- 3) Construct an electron-dot diagram for th

Molecule Shape

What shape do you expect for each of the following molecules? See attached for multiple choice answers.

Molecule Shapes

What shape do you expect for molecules that meet the following descriptions? a) A central atom with two lone pairs and three bonds to other atoms. b) A central atom with two lone pairs and two bonds to other atoms. c) A central atom with two lone pairs and four bonds to other atoms.

Octet Rule

Which of the following substances contains an atom that does not follow the octet rule? See attached for multiple choice answers.

Structure of ice

Compare the structure of ice with the structure of diamond. If you rotate the structures just right, you will see distinct similarities, namely sp3 hybridization (of owygen and carbon, respectively) and the hexagonal arrangement of atoms. Given this similarity, explain why ice can be melted by applying pressure whereas diamond

Ethanol/acetic acid

Ethanol and acetic acid have very similiar molor masses and hoth exhibit hydrogen bonding. In which of these two compounds is hydrogen bonding a more significant component of the overall intermolecular forces? Support your answer using date from the Equilibrium Vapor Pressure.

Ice substance

Water is a substance with some very unusual properties. Based on a comparison of the water molecule and the structure of ice explain (a) why ice is less dense than water, and (b) why increasing pressure, within a certain temperature range, causes ice to melt. (c) why is it not possible to convert ice to liquid water by applyi

Lidocaine Problem

Lidocaine is thought to bind to receptors in its methylated form above. Identify in writing the atoms or groups in the above compound that could be involved in its binding to a receptor via... (See attachment for full question)


State the type of bonding that is present in barium chloride,BaCl2(2 should be subscript- low down , can't do it in this program), giving your reasons in two or three senttences, using arguments based on electronegatives. Also, give an explanation using electron stuctures, of the way in which the type of bonding explains the


Give a detailed mechanism for the reaction of o-fluorobenzophenone (Ar-C-(=O)-Ar-F)....Ar=benzene ring with amide ion (NH2/NH3) to yield H2N-C(=O)-Ar + Ar-F


Pls see attached

Four compounds have the formula C4H8O, identify possible compounds.

Four compounds have the formula C4H8O. Identify possible compounds (by name or structure). Compounds A and C have similar boiling points; Compounds B and D have significantly lower boiling points than A and C. A Reacts with oxidizing agents; reacts immediately with bromine; negative Iodoform Test; negative Lucas Test. B

Enthalpy and Bond energy

Using H-H 432.0, Cl-Cl = 239.7, H-Cl = 428.0, determine the rH for the reaction: H?H (g) + Cl?Cl(g) 2H?Cl (g) 2. If the rH of combustion of CH4 is -802kJ/mol. How many grams of water, which has a specific heat of 4.184 J/g-oC, can be heated from 20oC to 90oC by combustion of 2.00 mol o

Pi bonding, temperature volume

1) Two flexible containers for gasses are the same temperature and pressure. One holds .50 grams hydrgen and the other 8.0 grams of oxygen. Which of the following statements regarding these gas samples is false? a) the volume of the hydrogen container is the same as the volume of the oxygen container b) the number of mol


Questions 7 - 8: a) a network solid with covalent bonding b) a molecular solid with London dispersion forces only c) a molecular solid with hydrogen bonding d) an ionic solid e) a metallic solid 7) solid ethyl alcohol, Csub2Hsub5OH. Ans A, B, C, D or E? 8) silicon dioxide, SiOsub2. Ans A, B, C, D or E?

Iconic Compounds

I am attaching a file. Please explain in detail how the solution is solved so I may compare. Thank You.