Search found 9 matches

by Nicholas Fierro 1E
Sat Mar 18, 2017 8:56 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: A question about isomers
Replies: 1
Views: 521

Re: A question about isomers

I was looking through the organic chemistry course reader. On page 122, I read about a thing called an enantiomer which sounds very similar to what you are describing. So yes, it is possible for another arrangement of substituents to occur. Basically, an enantiomer is just a mirror reflection of its...
by Nicholas Fierro 1E
Sat Mar 11, 2017 10:58 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Ethane (H3C–CH3) conformation clarification [ENDORSED]
Replies: 2
Views: 446

Re: Ethane (H3C–CH3) conformation clarification [ENDORSED]

Generally, we understand a staggered conformation to be more stable because the hydrogens are not on the same plane (which is easily seen in a Newman projection). However, in a eclipsed conformation, the hydrogens from the opposing carbons are on the same plane and therefore, the electron repulsion ...
by Nicholas Fierro 1E
Sat Mar 04, 2017 11:04 pm
Forum: *Electrophiles
Topic: Electrophilic Addition
Replies: 1
Views: 383

Re: Electrophilic Addition

Hi could you please clarify what you are asking? Maybe by giving an example?
by Nicholas Fierro 1E
Sat Feb 25, 2017 9:41 pm
Forum: *Cycloalkenes
Topic: Carbon binding preferences for HBr [ENDORSED]
Replies: 1
Views: 337

Re: Carbon binding preferences for HBr [ENDORSED]

The answer is that electrophilic addition is the first step because H+ is added to one of the carbons in the alkene, which reflects the bond breaking of the pi bond. Another reason is because HBr is slightly polar and there is less electron density in the hydrogen. The hydrogen side of the HBr will ...
by Nicholas Fierro 1E
Sat Feb 18, 2017 11:25 pm
Forum: First Order Reactions
Topic: 2013 Quiz Preparation Question#5 for 1st Order Reactions [ENDORSED]
Replies: 3
Views: 480

Re: 2013 Quiz Preparation Question#5 for 1st Order Reactions [ENDORSED]

I also had a question as to how to solve this problem. I understand which equations must be used to get the answer, although I am not sure why you would use 1/2^n to get to the value of 1/64? When I tried to solve this problem, I thought I would just multiply 1/2 by 1/32 to get to the value of 1/64....
by Nicholas Fierro 1E
Sat Feb 11, 2017 9:14 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Midterm 2013 Question 7 Clarification with the cell diagram
Replies: 1
Views: 229

Re: Midterm 2013 Question 7 Clarification with the cell diagram

I believe we would be given values for E knot when it comes to exam time, although it will probable that we will need to know how to manipulate the reaction given so that we will be able to utilize an E knot value given in the table.
by Nicholas Fierro 1E
Sat Jan 21, 2017 9:13 pm
Forum: Phase Changes & Related Calculations
Topic: Homework chapter 8 #3 part a [ENDORSED]
Replies: 2
Views: 420

Homework chapter 8 #3 part a [ENDORSED]

Air in a bicycle pump is compressed by pushing in the handle. If the inner diameter of the pump is 3.0 cm and the pump is depressed 20cm with a pressure of 2.00 atm (a) how much work is done in the compression? I am not quite sure how to approach this problem because the height of the bicycle pump i...
by Nicholas Fierro 1E
Sat Jan 21, 2017 9:12 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Homework chapter 8 #3 part a
Replies: 1
Views: 159

Homework chapter 8 #3 part a

Air in a bicycle pump is compressed by pushing in the handle. If the inner diameter of the pump is 3.0 cm and the pump is depressed 20cm with a pressure of 2.00 atm (a) how much work is done in the compression? I am not quite sure how to approach this problem because the height of the bicycle pump i...
by Nicholas Fierro 1E
Sun Jan 15, 2017 10:57 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Reaction Enthalpies
Replies: 1
Views: 141

Reaction Enthalpies

Any tips on finding extra practice problems on reaction enthalpies?

Go to advanced search