Search found 14 matches

by Jason Lee 3B
Thu Jan 29, 2015 8:23 pm
Forum: Calculating Work of Expansion
Topic: isothermal reversible expansion with V and P change
Replies: 8
Views: 1483

Re: isothermal reversible expansion with V and P change

Also, the w and q equations have T in them: w = -nRTln(18/6) , q = nRTln(18/6).
by Jason Lee 3B
Tue Jan 13, 2015 6:29 pm
Forum: Calculating Work of Expansion
Topic: Error in Solutions Manual 7.3
Replies: 1
Views: 311

Error in Solutions Manual 7.3

There is an error in the solution for Chapter 7, #3a. It gives a conversion factor of (101.325 L / L.atm) when it should be (101.325 J / L.atm). Or so I believe.
by Jason Lee 3B
Tue Dec 09, 2014 10:14 am
Forum: *Titrations & Titration Calculations
Topic: pKa/b and pH
Replies: 1
Views: 366

pKa/b and pH

To clarify, under what conditions is the pKa or pKb found at the halfway mark to the equivalence point?
by Jason Lee 3B
Mon Dec 01, 2014 7:25 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 #10
Replies: 8
Views: 1110

Quiz 3 #10

The question asks for equilibrium partial pressures but we're given moles and volume. How do we get between these?
by Jason Lee 3B
Mon Nov 24, 2014 9:21 am
Forum: Naming
Topic: Charge on example compound, pg 100 in CR
Replies: 1
Views: 308

Charge on example compound, pg 100 in CR

[Co(NH3)5 Cl] Cl . 2H20 is used as a naming example: Penta Ammine Chloro Cobalt(II) Chloride Dihydrate. I was confused as to why the Cobalt charge was +2. Does the NH3 not contribute to calculating the charge or something?
by Jason Lee 3B
Mon Nov 10, 2014 5:37 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Determining shapes
Replies: 1
Views: 280

Determining shapes

Are shapes of coordination compounds determined the same way as shapes in VSEPR theory?
by Jason Lee 3B
Fri Nov 07, 2014 12:56 am
Forum: Determining Molecular Shape (VSEPR)
Topic: COCl2 Polar or Nonpolar?
Replies: 4
Views: 25624

Re: COCl2 Polar or Nonpolar?

You do have to factor in that electronegative oxygen. COCl2 is polar- check out the chart on page 103 of the textbook. It actually shows a model of it!
by Jason Lee 3B
Mon Nov 03, 2014 10:31 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Hybridization and bond types
Replies: 2
Views: 523

Hybridization and bond types

Do sigma and pi bonds play any part in determining the hybridization of orbitals?
by Jason Lee 3B
Mon Oct 27, 2014 6:20 pm
Forum: Ionic & Covalent Bonds
Topic: Coordinate covalent bond
Replies: 2
Views: 2320

Coordinate covalent bond

What makes a 'coordinate' covalent bond different than any other covalent bond? For example, course reader says a coordinate covalent bond is formed when BF4- is formed from BF3 and F-.
by Jason Lee 3B
Tue Oct 21, 2014 1:10 pm
Forum: Limiting Reactant Calculations
Topic: Fundamental Self Test - Limiting Reagent
Replies: 3
Views: 706

Re: Fundamental Self Test - Limiting Reagent

You have to balance that equation first. Then you'll be able to compare moles and such!
by Jason Lee 3B
Tue Oct 21, 2014 1:08 pm
Forum: Limiting Reactant Calculations
Topic: Fundamental Self Test - Limiting Reagent
Replies: 3
Views: 706

Re: Fundamental Self Test - Limiting Reagent

You have to balance that equation first. Then you'll be able to compare moles and such!
by Jason Lee 3B
Sun Oct 19, 2014 12:09 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Why does f-block start there?
Replies: 1
Views: 361

Why does f-block start there?

When n = 4, then angular momentum number L can be 3. The f-orbital corresponds to L = 3. So why does the 4f orbital only start getting filled in the 6th period of the periodic table? Rather than the 4th period?
by Jason Lee 3B
Thu Oct 16, 2014 12:55 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Electron Spins
Replies: 5
Views: 861

Electron Spins

Mostly out of curiosity, why can't electrons spin the same way in the same orbital, as the Pauli Exclusion Principle says? How do they affect each other in this way?
by Jason Lee 3B
Tue Oct 07, 2014 5:32 pm
Forum: SI Units, Unit Conversions
Topic: Exercise 1 in Fundamentals Section
Replies: 2
Views: 686

Re: Exercise 1 in Fundamentals Section

This is E1 for clarification. You're right, you should use the diameter to find the length. I think the atomic radius is given just because atoms are usually classified by radius rather than diameter.

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