Search found 8 matches

by Saira Purewal 3E
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...
by Saira Purewal 3E
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?
by Saira Purewal 3E
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!
by Saira Purewal 3E
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.
by Saira Purewal 3E
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.
by Saira Purewal 3E
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.
by Saira Purewal 3E
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?
by Saira Purewal 3E
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?

Go to advanced search