Search found 8 matches
- Sat Jan 10, 2015 8:36 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Are all combustions endothermic?
- Replies: 2
- Views: 6871
Are all combustions endothermic?
I thought all combustion reactions would be endothermic because you're always combusting something in the presence of heat. The example we did on page 15 of the course reader on this past Friday's lecture was the combustion of methane. The standard enthalpy came to -891 kJ which means its strongly e...
- Tue Dec 02, 2014 10:41 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Why can CO3(2-) be a mono/bidentate ligand
- Replies: 3
- Views: 8069
Why can CO3(2-) be a mono/bidentate ligand
Why can CO3(2-) be a mono/bidentate ligand?
- Tue Dec 02, 2014 10:37 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Determining number of ligands
- Replies: 7
- Views: 2381
Re: Determining number of ligands
I find this confusing too but I think the Nitrogen can bind to the metal center because it has a lone pair of electrons that can form that bond with the metal. Hope that helps a little!
- Tue Dec 02, 2014 10:24 am
- Forum: Naming
- Topic: 16.29 part d (another question)
- Replies: 1
- Views: 343
Re: 16.29 part d (another question)
Hi Janki, I would always recommend writing it OH2 because that is how it is written in Lavelle's lectures to emphasize it is the Oxygen bonding, not the Hydrogens.
- Mon Dec 01, 2014 5:42 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Square Planar complexes
- Replies: 1
- Views: 403
Square Planar complexes
Do all square planar complexes have four ligands? In the Fall 2012 Quiz 3 Preparation, number 4 asks how many ligands of a specific molecule would be found in a square planar complex. The answer is 2 instead of 4 like I would expect.
- Mon Dec 01, 2014 5:22 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Square Planar complexes
- Replies: 1
- Views: 375
Square Planar complexes
Do all square planar complexes have four ligands? In the Fall 2012 Quiz 3 Preparation, number 4 asks how many ligands of a specific molecule would be found in a square planar complex. The answer is 2 instead of 4 like I would expect.
- Mon Dec 01, 2014 1:01 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Using Kc to determine which way a reaction goes?
- Replies: 2
- Views: 471
Using Kc to determine which way a reaction goes?
In chapter 10 homework #49, you are given the equation NH4HS--><---NH3+H2S for which Kc=1.6X10^-4. The solution manual rewrites the equation as NH4HS------->NH3+H2S. How do we know that the reaction will occur in that direction?
- Tue Nov 25, 2014 6:23 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: How does an equation go to equilibrium?
- Replies: 2
- Views: 542
How does an equation go to equilibrium?
I understand that Q gives you the reaction quotient at any time during the reaction and tells you which way the reaction is going. But how does the reaction move to equilibrium and how do you know when its at equilibrium? Will you always be supplied with K?