Search found 10 matches
- Sun Mar 19, 2017 2:21 pm
- Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
- Topic: Conformation angle
- Replies: 1
- Views: 515
Conformation angle
Does the angle matter when talking about full eclipse and eclipse?
- Fri Mar 17, 2017 8:08 pm
- Forum: *Electrophiles
- Topic: How do you categorize Electrophiles?
- Replies: 2
- Views: 721
How do you categorize Electrophiles?
If an electrophile has more than one element how do you determine if it is an electrophile or nucleophile?
- Thu Mar 09, 2017 3:19 pm
- Forum: *Alkanes
- Topic: Naming Help
- Replies: 7
- Views: 851
Naming Help
When you have a cycloalkane and you have more than one substituent, how do you number when the all the corners of the molecule have a substituent. Is it alphabetical order?
- Tue Feb 21, 2017 11:41 am
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: Finding K
- Replies: 1
- Views: 281
Finding K
When trying to find K when do you use the average one with (change)/(change in time) vs. the manipulation of the integrated rate law?
- Sun Feb 19, 2017 5:57 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Drawing a Cell Diagram
- Replies: 3
- Views: 449
Drawing a Cell Diagram
When you are drawing a cell diagram when do you include a salt bridge and when do you include Pt(s) on the left and on the right side of the diagram?
- Sun Feb 12, 2017 9:36 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Determining Solubility Products
- Replies: 1
- Views: 220
Determining Solubility Products
How do you determine the solubility products of an element when solving for K or Q in a problem?
- Fri Feb 03, 2017 8:15 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: What exactly is free energy?
- Replies: 1
- Views: 308
What exactly is free energy?
So I know how to calculate Gibbs Free Energy but what is it conceptually? I understand that if you have a negative value of Gibbs it is spontaneous and vice versa but what does the negative mean exactly in terms of energy? Is it negative free energy that promotes the reaction to go forward? I just h...
- Sat Jan 28, 2017 6:45 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Calculating Entropy of Surroundings
- Replies: 1
- Views: 332
Calculating Entropy of Surroundings
I was trying to to do Self-Test 9.15A in the book which says "Calculate the entropy change of the surroundings when 1.00 mol H2O(l) vaporizes at 90 degrees C and 1 bar." The question continues but I couldn't get over this first part. How does water vaporize at 90 degrees C if the boiling p...
- Wed Jan 18, 2017 9:01 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Need some clarification on finding enthalpy for a reaction.
- Replies: 2
- Views: 311
Need some clarification on finding enthalpy for a reaction.
When trying to find the enthalpy for a reaction, you use the standard enthalpies of formation in order to use the sum of the standard enthalpies of the products minus the reactants, correct? In addition to that, why do we subtract the reactants from the products and not the other way around?
- Thu Jan 12, 2017 9:45 pm
- Forum: Calculating Work of Expansion
- Topic: Question about Reversible Process
- Replies: 1
- Views: 206
Question about Reversible Process
So I just need something clarified. When a process is a irreversible it is irreversible because of their is a finite amount of pressure from the system that differs from the external pressure. When calculating the reversible process is the "infinitely small change" the ln portion of the eq...