Search found 13 matches

Wed Nov 30, 2016 7:53 am
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Ka/Kb question
Replies: 4
Views: 686

Re: Ka/Kb question

Yes, they do not have kb or ka values because they are completely dissociated. Their concentration is assumed to be 100% ionized. For example if you have 0.1M of HCl, this means you would have 0.1M of H30+ ions and 0.1M of Cl-.
Wed Nov 30, 2016 7:51 am
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: ICE Tables
Replies: 2
Views: 558

Re: ICE Tables

Does this include values of 10^-4 or is it just smaller than that?
Sun Nov 27, 2016 3:59 pm
Forum: Lewis Acids & Bases
Topic: How to determine which is an acid and which is a base?
Replies: 5
Views: 790

Re: How to determine which is an acid and which is a base?

Also NH3 has a lone pair. I think this may be the reason it bonds with the other hydrogen
Sun Nov 27, 2016 3:40 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Can you classify acids as strong or weak from their formulas alone? [ENDORSED]
Replies: 7
Views: 1036

Re: Can you classify acids as strong or weak from their formulas alone?[ENDORSED]

Yes, I think you are correct in assuming that because the x value would be so small anyways that it doesn't matter if you subtract it. However it is important to remember that it is still greater than 0 because if it was 0 then your numerator wouldn't make sense either.
Sun Nov 20, 2016 2:26 pm
Forum: Lewis Acids & Bases
Topic: Lewis vs Bronsted
Replies: 3
Views: 595

Re: Lewis vs Bronsted

So according to this could both the Lewis and Bronsted explanations be describing the same acid? They just differ in what is accepted where?
Sun Nov 13, 2016 7:30 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Partial Pressure or Concentration
Replies: 3
Views: 446

Re: Partial Pressure or Concentration

Thank you!
Sun Nov 13, 2016 6:40 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Partial Pressure or Concentration
Replies: 3
Views: 446

Partial Pressure or Concentration

For some of the homework problems it just said to solve for k with a certain chemical reaction. If it doesn't specify kp or kc which one should we use? For some of them it switched back and forth between different parts of one question.
Sun Nov 13, 2016 6:38 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 Prep: Fall 2014 #8
Replies: 1
Views: 304

Re: Quiz 3 Prep: Fall 2014 #8

I have not done this problem yet but I think that you would use the given information and mole conversions based on the reaction given to find the moles of each reactant and product. Then you would divide it by the liters given to find the molarity of each product and reactant. This will give you th...
Wed Nov 02, 2016 5:19 am
Forum: Hybridization
Topic: hybridization
Replies: 2
Views: 375

Re: hybridization

Px works with s to form the sp orbital. Later on Px and Pz will form the sp^2 orbital. After that all the p orbitals combine with s to form sp^3.
Sat Oct 15, 2016 9:56 pm
Forum: Ionic & Covalent Bonds
Topic: Question on Ionic vs Covalent bonds
Replies: 2
Views: 475

Re: Question on Ionic vs Covalent bonds

I learned the same thing in high school. I think now it is more focused on how the electrons work. In class I remember hearing that ionic bonds are mostly salts. I think that what we learned in high school was just a way to simplify it and provide a base structure for the reactions that we were most...
Sat Oct 15, 2016 9:53 pm
Forum: Trends in The Periodic Table
Topic: d-block electron configuraitons
Replies: 4
Views: 661

Re: d-block electron configuraitons

So does this mean that before the atomic number reaches 20 the s orbital will come before the d orbital?
Fri Oct 07, 2016 10:04 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Orbitals [ENDORSED]
Replies: 9
Views: 1133

Re: Orbitals[ENDORSED]

I understand that the number corresponds to the energy level and the letter is the shape, but what does the shape actually mean? How do the orbitals have different shapes? Is it the path the electron takes? I think it is just conceptually hard to visualize but I am still very confused on this concept.
Tue Sep 27, 2016 11:19 am
Forum: Significant Figures
Topic: All students read this sig fig post [ENDORSED]
Replies: 131
Views: 17136

Re: All students read this sig fig post[ENDORSED]

Since the number of sig figs only matters in our final answer, is there a range of correct responses when it comes to free response? I'm assuming that some people will round differently throughout the process of finding an answer which can lead to varied answers.