Search found 20 matches

by Jonathan Alcantara 4I
Mon Mar 14, 2016 12:10 am
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Most Stable Chair Confirmation with Substituent
Replies: 1
Views: 617

Most Stable Chair Confirmation with Substituent

I know the course is over, however, I am curious... Would a chair confirmation with the substituent in the equatorial position attached to the "foot rest" or "head rest" part of the confirmation be more stable than if the substituent in the equatorial position is attached to a ca...
by Jonathan Alcantara 4I
Wed Mar 09, 2016 8:24 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Potential Energy and Dihedral Angles
Replies: 1
Views: 2346

Potential Energy and Dihedral Angles

Can someone explain the relationship between the potential energy and dihedral angels? Why does the potential energy depend on the dihedral angles?

Thank you!
by Jonathan Alcantara 4I
Thu Mar 03, 2016 10:47 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalyst and Activation Energy
Replies: 1
Views: 487

Catalyst and Activation Energy

Can someone please explain how exactly a catalyst lowers the activation energy of the transition state?

Thanks!
by Jonathan Alcantara 4I
Thu Mar 03, 2016 10:44 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Free Energy of Activation vs Activation Energy
Replies: 1
Views: 5969

Free Energy of Activation vs Activation Energy

Can someone please explain the difference between free energy of activation and activation energy?

Thanks!
by Jonathan Alcantara 4I
Mon Feb 08, 2016 10:54 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Gibbs Free Energy and Work
Replies: 2
Views: 766

Gibbs Free Energy and Work

Can someone explain how we can assume that the maximum work is equal to the change in Gibbs free energy at constant temperature and pressure within a redox reaction in a battery?

Thank you!
by Jonathan Alcantara 4I
Sun Feb 07, 2016 9:59 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Free Energy and Cell Potential
Replies: 1
Views: 459

Free Energy and Cell Potential

Can someone explain the relationship between Gibbs free energy and cell potential???

Thank you!
by Jonathan Alcantara 4I
Sun Jan 31, 2016 4:39 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Standard Cell Potentials and Equilibrium Constant
Replies: 1
Views: 490

Standard Cell Potentials and Equilibrium Constant

Can someone explain the relationship between standard cell potential and the equilibrium constant of a reaction?
by Jonathan Alcantara 4I
Sun Jan 24, 2016 7:03 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Reaction Free Energy, Pressure, and Equilibrium Constant
Replies: 1
Views: 419

Reaction Free Energy, Pressure, and Equilibrium Constant

Can someone explain how reaction free energy depends on pressure and the equilibrium constant?

Thanks!
by Jonathan Alcantara 4I
Mon Jan 18, 2016 6:00 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: State of Matter and Entropy
Replies: 1
Views: 479

State of Matter and Entropy

How exactly does the state of matter affect the entropy of a substance??

Thank you!
by Jonathan Alcantara 4I
Sat Jan 09, 2016 10:47 pm
Forum: Phase Changes & Related Calculations
Topic: Hess's Law Dependence on Enthalpy as State Function
Replies: 1
Views: 889

Hess's Law Dependence on Enthalpy as State Function

Can someone please explain how Hess's law depends on the fact that enthalpy is a state function?

Thanks!
by Jonathan Alcantara 4I
Thu Dec 03, 2015 11:12 pm
Forum: *Biological Importance of Buffer Solutions
Topic: Blood as a Buffer Solution [ENDORSED]
Replies: 2
Views: 1874

Blood as a Buffer Solution [ENDORSED]

How exactly is blood buffered?

Thanks
by Jonathan Alcantara 4I
Mon Nov 30, 2015 4:07 am
Forum: Air Pollution & Acid Rain
Topic: Reducing Acid Rain
Replies: 4
Views: 2214

Reducing Acid Rain

What options or methods are possible to reduce acidity in rain?

Thanks.
by Jonathan Alcantara 4I
Sun Nov 22, 2015 11:16 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: pH Values of Weak and Strong Acids
Replies: 1
Views: 647

pH Values of Weak and Strong Acids

Why do solutions of weak acids have higher pH values than solutions of strong acids at the same concentration?

Thank you!
by Jonathan Alcantara 4I
Sun Nov 15, 2015 5:10 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Le Chatelier's Principle: Effects of Temperature
Replies: 1
Views: 591

Le Chatelier's Principle: Effects of Temperature

How does Le Chatelier's Principle predict the effect of decreasing or increasing temperature for a reaction?

Thank you!
by Jonathan Alcantara 4I
Sun Nov 08, 2015 6:54 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: How Q Predicts Reaction
Replies: 1
Views: 416

How Q Predicts Reaction

How does the value of Q determine the direction of reaction to be predicted?

Thanks!
by Jonathan Alcantara 4I
Sun Nov 01, 2015 4:53 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Electron Transitions
Replies: 1
Views: 406

Electron Transitions

What is the difference between e- transitions in atomic orbitals (atomic spectroscopy) and e- transitions in molecular orbitals (molecular spectroscopy)?

Thank you!
by Jonathan Alcantara 4I
Sun Oct 25, 2015 2:01 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Atomic Orbitals to Molecular Orbitals
Replies: 1
Views: 345

Atomic Orbitals to Molecular Orbitals

Hello,

Can someone explain to me how atomic orbitals combine to form molecular orbitals?

Thanks!
by Jonathan Alcantara 4I
Sun Oct 18, 2015 2:49 pm
Forum: Hybridization
Topic: Hybridization from Atomic Orbitals
Replies: 1
Views: 470

Hybridization from Atomic Orbitals

After reading Outline 4 for Molecular Shape and Structure, I did not fully understand the concept of how hybridization arises from atomic orbitals.

Thank you!
by Jonathan Alcantara 4I
Fri Oct 09, 2015 2:30 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Schrodinger's Equation
Replies: 1
Views: 536

Schrodinger's Equation

Hello!

I have a hard time understanding how Schrodinger's Equation describes the wave function as an orbital?

Thank you!
by Jonathan Alcantara 4I
Thu Oct 01, 2015 10:05 pm
Forum: Properties of Light
Topic: Photoelectric Effect and Electromagnetic Radiation
Replies: 1
Views: 496

Photoelectric Effect and Electromagnetic Radiation

This question is in regards to Ch 1 Homework 1.21. I am having a hard time understanding how the photoelectric effect supports the idea that electromagnetic radiation has properties of particles.

Thanks!

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