Search found 10 matches

by Polly
Thu Dec 04, 2014 12:40 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Q in Practice Test 2, #5
Replies: 4
Views: 735

Re: Q in Practice Test 2, #5

So in order to know which way a reaction will go (ie. creating more reactants or products), you must know K, correct? You have to know K in relationship to Q. You can also tell which way a reaction will go if they give you information about concentration, pressure, volume, or temperature and if it ...
by Polly
Thu Dec 04, 2014 12:29 am
Forum: Naming
Topic: Chemical Formula
Replies: 4
Views: 632

Re: Chemical Formula

Also when you write out the name the ligands go in alphabetical order based on the name of the ligand, not it's greek prefix
by Polly
Thu Dec 04, 2014 12:27 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Pressure
Replies: 5
Views: 724

Pressure

When there are the same amount of moles on both sides of a reaction and the pressure is increased or decreased is there no shift in the way the equilibrium lies?
by Polly
Wed Dec 03, 2014 1:06 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 Preparation Fall 2013 Quiz: #10
Replies: 9
Views: 1449

Re: Quiz 3 Preparation Fall 2013 Quiz: #10

First, solve for K with the initial conditions, (7.6)(4.9)/(1.08) 2 will give you K=31.927 Next make your ICE table for the change 2BrCl <---> Br 2 + Cl 2 I .5(1.08) 4.9 7.6 C + 2x -x -x E .54 + 2x 4.9 -x 7.6-x now you solve for X 31.927= (4.9-x)(7.6-x)/(.54+2x) 2 X= .025 .54 + 2(.25) = 1 bar
by Polly
Wed Dec 03, 2014 12:02 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 Question
Replies: 1
Views: 373

Quiz 3 Question

How do you do this?!? N 2 + 3H 2 <---> 2NH 3 deltaH = -92.22kL/mol The equilibrium mixture was found to contain 1 mol N 2 , 3 mol H 2 , and 36% by volume of ammonia at 400 degrees C and total pressure of 200 atm, Calculate the value of the equilibrium constant (K p ) and partial pressure of nitrogen...
by Polly
Tue Dec 02, 2014 11:57 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Compound Equations
Replies: 1
Views: 325

Coordination Compound Equations

How do you get this answer? Question: Given that the coordination number of silver is 2, please write down an ionic equation to explain how AgCl dissolves in water at the presence of excess NH3. Note: ammonia is a stronger ligand than chlorine Answer: AgCl (s) + 2NH3 (aq) --> Ag(NH3) 2 + (aq) + Cl- ...
by Polly
Tue Dec 02, 2014 11:36 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 Prep, Fall 2012 #8
Replies: 6
Views: 730

Re: Quiz 3 Prep, Fall 2012 #8

Why was the .28 atm halved before put in the ice table as the initial for 2HI?
by Polly
Tue Dec 02, 2014 11:28 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Homework Question 69
Replies: 5
Views: 664

Re: Homework Question 69

How small does the K value have to be to allow us to create new initial concentrations? And would the answer be incorrect if we did it out without creating new initial concentrations?
by Polly
Tue Dec 02, 2014 12:38 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number
Replies: 1
Views: 365

Coordination Number

How do you find out what the coordination number is without drawing out the molecule? For example with the molecule [Co(en)2]Cl3, why is the coordination number 6?
by Polly
Tue Dec 02, 2014 12:38 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number
Replies: 2
Views: 420

Coordination Number

How do you find out what the coordination number is without drawing out the molecule? For example with the molecule [Co(en)2]Cl3, why is the coordination number 6?

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