Search found 21 matches

by Garrett_Reynolds_1D
Sun Mar 19, 2017 11:48 am
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Details and Review Sessions Winter 2017
Replies: 114
Views: 13551

Re: Final Exam Details and Review Sessions Winter 2017

Minu Reddy wrote:Hi Everyone,
I was wondering if we need to know how to draw a boat conformation?

Thank you



Yes you should know how to drawl those for sure.
by Garrett_Reynolds_1D
Tue Mar 14, 2017 10:43 pm
Forum: *Alkenes
Topic: Numbering the Double Bond
Replies: 3
Views: 610

Re: Numbering the Double Bond

It goes at the very beginning of the name.
by Garrett_Reynolds_1D
Tue Mar 07, 2017 11:16 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Question 15.65 Part B
Replies: 1
Views: 263

Re: Question 15.65 Part B

I believe that the answer is endothermic as in the equation a bond is being made which requires heat whereas if a bond was being broken, the equation would have been exothermic.
by Garrett_Reynolds_1D
Sun Mar 05, 2017 7:18 pm
Forum: *Alkanes
Topic: Priorities
Replies: 2
Views: 232

Re: Priorities

It is always in alphabetical order and the lowest numbers first.
by Garrett_Reynolds_1D
Sun Feb 26, 2017 6:52 pm
Forum: *Electrophiles
Topic: Nucleophile and Electrophile
Replies: 3
Views: 335

Re: Nucleophile and Electrophile

Yes, I believe this is correct and those are nucleophiles.
by Garrett_Reynolds_1D
Sun Feb 12, 2017 7:49 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Cell Diagrams
Replies: 2
Views: 361

Cell Diagrams

I am confused on the order of the compounds in the Cell Diagram. I understand that the anode is on the left and the cathode is on the right, and I thought that the solid compounds normally go on the outside but I have seen solutions that say otherwise...can someone explain? Thanks. Also adding Plati...
by Garrett_Reynolds_1D
Tue Feb 07, 2017 10:03 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: What is n? [ENDORSED]
Replies: 8
Views: 813

Re: What is n? [ENDORSED]

Using the equation: W(max)=ΔG=-nFE, n represents the total number of moles transferred.
by Garrett_Reynolds_1D
Wed Feb 01, 2017 7:35 am
Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
Topic: Rechargeable Batteries
Replies: 2
Views: 466

Rechargeable Batteries

I have heard that fundamental battery we know today is inefficient because of its size, and I agree. Take a laptop battery for example, it is essentially a brick. Obviously we have just been introduced to Electrochemistry and now understand how a rechargeable battery works. Does anyone know or heard...
by Garrett_Reynolds_1D
Tue Jan 24, 2017 8:08 pm
Forum: Calculating Work of Expansion
Topic: Quiz 1
Replies: 2
Views: 328

Re: Quiz 1

Professor Lavelle will announce as the Quiz gets closer what material will be on Quiz 1 and as far as I know, it will be just information from Chem 14B.
by Garrett_Reynolds_1D
Sun Jan 22, 2017 6:05 pm
Forum: Calculating Work of Expansion
Topic: Changing L•atm to J [ENDORSED]
Replies: 1
Views: 294

Re: Changing L•atm to J [ENDORSED]

The standard conversion for L•atm to J is 11 liter atmosphere is equal to 101.325 joule. In terms of the quizzes, I believe that mostly everything will be in joules. This conversion is also on the equation sheet that you will be given for quizzes and exams (see laminated chart that came with the cou...
by Garrett_Reynolds_1D
Tue Jan 10, 2017 8:24 pm
Forum: Administrative Questions and Class Announcements
Topic: Chemistry Community 14B Posts
Replies: 1
Views: 204

Chemistry Community 14B Posts

Can we use the same login information as Chem 14A for Chem 14B with just changing the discussion section in our ID? Or do we have to create new login information all together for Chem 14B? Thanks.
by Garrett_Reynolds_1D
Tue Nov 29, 2016 7:46 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Drawing Molecular Orbital Diagrams
Replies: 1
Views: 369

Re: Drawing Molecular Orbital Diagrams

I think the question you were curious about deals with the orbitals being slightly lower for one element than the other on a molecular orbital diagram. The electrons will be placed lower on if the element has a lower atomic number. For example, on Quiz #3, the Carbon orbitals should have been placed...
by Garrett_Reynolds_1D
Tue Nov 22, 2016 7:48 pm
Forum: General Science Questions
Topic: Why can't hydrogen ions exist by themselves?
Replies: 1
Views: 1084

Re: Why can't hydrogen ions exist by themselves?

Hydrogen atoms can actually exist by themselves, however they are very unstable especially in the presence of water molecules as they are attracted to the oxygen atoms to form H3O+.
by Garrett_Reynolds_1D
Wed Nov 16, 2016 7:04 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Effect of change in temperature
Replies: 1
Views: 270

Re: Effect of change in temperature

I believe that the equilibria would shift to the right as the reaction is endothermic, therefore requiring heat in the reaction to produce the products.
by Garrett_Reynolds_1D
Mon Nov 07, 2016 5:10 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Chelates
Replies: 2
Views: 388

Re: Chelates

A chelate is simply a compound that contains a ligand that is bonded to a central transition metal atom at two or more points.
by Garrett_Reynolds_1D
Mon Oct 31, 2016 7:55 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: bond angle
Replies: 3
Views: 427

Re: bond angle

Yes it would be a good idea to know the shapes of the bonds and there names. In terms of the calculating the bond angle, the degree of the angle often has to do with how many molecules are present but because the degree angle is not the same every shape, it is best to memorize the bond angle degree ...
by Garrett_Reynolds_1D
Sat Oct 29, 2016 11:53 am
Forum: Lewis Structures
Topic: Expanded Octets
Replies: 4
Views: 859

Re: Expanded Octets

The reason the Octet rule can be 'expanded' for certain elements is through utilizing the d-orbitals that are found in the third principal energy level of the element.
by Garrett_Reynolds_1D
Mon Oct 17, 2016 7:49 pm
Forum: General Science Questions
Topic: Does 10 inches of snow equal 1 inch of rain?
Replies: 1
Views: 874

Re: Does 10 inches of snow equal 1 inch of rain?

Sometimes. The ratio of snow to rain depends largely on the temperature outside. As temperatures are cooler (20 degrees F), the ratio of snow to rain tends to be more towards 1:20 (inches) and as temperatures are warmer (35-40 degrees F), the ratio of snow to rain tends to be more towards 1:5 (inche...
by Garrett_Reynolds_1D
Mon Oct 10, 2016 8:06 pm
Forum: DeBroglie Equation
Topic: Conceptual Wavelength measurement
Replies: 3
Views: 274

Re: Conceptual Wavelength measurement

If I am correct, the Planck Length is referred to as the smallest unit of measure in which one wavelength is measured to have of frequency of about 6.2x10^34 Hz.
by Garrett_Reynolds_1D
Wed Oct 05, 2016 8:03 pm
Forum: SI Units, Unit Conversions
Topic: SI Units/conversions memorization [ENDORSED]
Replies: 4
Views: 1002

Re: SI Units/conversions memorization [ENDORSED]

I would come up with maybe an acronym to help remember the prefixes, otherwise just practice writing them out over and over until they are easy. The main prefixes I would remember for this class are: giga-10^9 mega-10^6 kilo-10^3 UNIT (meter, ect.) 10^0 deci-10^-1 centi-10^-2 milli-10^-3 micro-10^-6...
by Garrett_Reynolds_1D
Wed Sep 28, 2016 9:25 pm
Forum: General Science Questions
Topic: Mass of an electron
Replies: 3
Views: 773

Re: Mass of an electron

Yes, the mass of an electron of any element is always the same. That mass is 9.10938356 × 10-31 kilograms. Hope that helps!

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