Search found 11 matches

by Kevin Chang 2I
Sun Mar 19, 2017 5:45 am
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Strain difference
Replies: 1
Views: 576

Strain difference

In a conformation, how can one distinguish torsional strain from steric strain?
by Kevin Chang 2I
Sun Mar 12, 2017 11:55 pm
Forum: *Organic Reaction Mechanisms in General
Topic: Transition states and stability
Replies: 2
Views: 861

Transition states and stability

In a reaction mechanism or profile, will the transition state always be structurally less stable than the intermediates? What determines the structural stability?
by Kevin Chang 2I
Sun Mar 05, 2017 6:41 pm
Forum: *Alkanes
Topic: Alkane vs Alkyl
Replies: 1
Views: 3872

Alkane vs Alkyl

What is the difference between an Alkene and an Alkyl?
by Kevin Chang 2I
Sun Feb 26, 2017 11:43 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Intermediates in a Reaction Mechanism
Replies: 1
Views: 317

Intermediates in a Reaction Mechanism

Do the intermediates in a reaction mechanism always have the lowest local free energy? If so, why?
by Kevin Chang 2I
Sun Feb 19, 2017 11:22 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Transition State Theory
Replies: 1
Views: 281

Transition State Theory

How does the transition state theory directly relate to the rate of a reaction or chemical kinetics in general?
by Kevin Chang 2I
Sun Feb 12, 2017 10:45 pm
Forum: Balancing Redox Reactions
Topic: H20, HO-, and H+ When Balancing
Replies: 1
Views: 318

H20, HO-, and H+ When Balancing

How does one know when to add H20, HO-, and/or H+ to either side of the Redox reaction when balancing it?
by Kevin Chang 2I
Sun Feb 05, 2017 9:20 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: pH and the Cell Potential
Replies: 2
Views: 329

pH and the Cell Potential

What exactly is the relationship between the pH of a solution and the measurement of a cell potential (Ecell)?
by Kevin Chang 2I
Sun Jan 22, 2017 11:37 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Enthalpy and Internal Energy relationship
Replies: 1
Views: 358

Enthalpy and Internal Energy relationship

How does the change in internal energy relate to a change in enthalpy and why (or when) is it necessary to convert values of delta(U) into delta(H)?
by Kevin Chang 2I
Thu Nov 17, 2016 10:11 am
Forum: Naming
Topic: Oxidation state and Coordination number
Replies: 1
Views: 5206

Oxidation state and Coordination number

What is the difference between the oxidation state and the coordination number in a compound?
by Kevin Chang 2I
Thu Jul 21, 2016 9:51 pm
Forum: Naming
Topic: Transition Metal Oxidation Numbers When Naming Complexes
Replies: 1
Views: 279

Transition Metal Oxidation Numbers When Naming Complexes

What is the exact process in determining the oxidation number/state for a transition metal when naming a coordination compound or complex?
by Kevin Chang 2I
Fri Jul 08, 2016 5:59 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Role of lone pairs of electrons on molecular structure
Replies: 2
Views: 3466

Role of lone pairs of electrons on molecular structure

Why are shapes for molecules determined only by the location of atoms and not the electron pair? What exactly is the role of lone pairs in determining molecular structure and why do they cause atoms around the central atom to push closer together?

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