CHEMISTRY COMMUNITY

Brock Burnett 3H

Can someone please help with Question #3 (the one with Pikachu) on the Winter 2014 Final? I am really lost as to how things were chosen for part A.

Brock Burnett 3H

When given a word problem about a standard electrochemical cell such as: A silver electrode being placed into a 1.0M Ag+ solution and a cadmium electrode being placed into a 1.0M Cd2+ solution. How do we tell which is going to act as the anode and which will act as the cathode? Thanks.

Brock Burnett 3H

Hi all, I'm doing the Winter 2011 Final and came across the question whether or not ethane or ethene has the higher heat capacity. Can someone explain to me why the answer is ethane? I would've thought the double bond in ethene would've contributed to a higher heat capacity. Secondly, Why does NO ha...

Brock Burnett 3H

Not so much of a joke but more a humorous observation. Has anyone noticed that when you say the equation:
S = KblnW it sounds a lot like: Entropy is equal to Boltzmann's constant times Ellen DeGeneres-y???

Brock Burnett 3H

If the final is going to be 8 questions like the midterm, but we are also given an extra hour, does that mean we can expect each question to have more parts (a,b,c,d etc.) than the midterm?

Brock Burnett 3H

In the quiz workbook, there was a problem where an isopropyl and 2 methyls were attached to a cyclohexane right next to each other. Following the fact that isopropyl comes before dimethyl in the alphabet, I had named it 1-Isopropyl-2,2,-dimethylcyclohexane. The answer however switched the numbers (2...

Brock Burnett 3H

Can someone please explain to me why on page 104 of the course reader the Chloro in 4-Chloro-2-Butanol comes before the Butanol? Why does this break the alphabet rule?

Brock Burnett 3H

In the course reader, we went over examples of transition phases, and I remember there was an example in which we showed Bromine bonding to Hydrogen in the transition phase, but it was later pulled off before the next transition phase even took place. What is the purpose of that bond being shown if ...

Brock Burnett 3H

In honor of Valentines Day:

Roses are Red
Violets are Blue
You melt my heart
like Ba(OH)2

Brock Burnett 3H

Can someone please explain to me why it is that 2nd order reaction half lives get larger with each subsequent time interval, zero order gets smaller, but 1st order remains the same? What is the conceptual reason behind this?

Brock Burnett 3H

Can someone please explain the idea behind oxidizing and reducing agents? I learned in discussion that they are the exact opposite of what their name implies so some clarification would be nice. Thanks

Brock Burnett 3H

What is the first rule of thermodynamics? You don't talk about thermodynamics.

Brock Burnett 3H

What do you call a tooth in a glass of water? A one molar solution!

Brock Burnett 3H

Is the process for calculating the change in enthalpy for a certain substance undergoing phase changes (when we use the heating curve) essentially the same as calculating the change in entropy? (differing in just the values obviously). Thanks!

Brock Burnett 3H

Can someone please explain to me the difference between entropy and Gibbs free energy in terms of spontaneity? I remember when we learned about entropy, it was described as having to do with spontaneity but now I don't see the distinction - conceptually - with that and Gibbs free energy.

Brock Burnett 3H

Can someone please clarify the difference between an extensive and an intensive property along with what they relate to in terms of thermodynamics/chemistry? Thank you!

Brock Burnett 3H

In the equation Qsystem = -Qsurroundings, is the (-) sign only there to account for the idea of work being done vs by a system?

CHEMISTRY COMMUNITY

Search found 17 matches

Question 3 on Final 2014

Determining Anodes and Cathodes

Ethane vs Ethene Heat Capacity

Re: Chemistry Jokes

Question about the final

Cyclohexane problem

4-Chloro-2-Butanol

Course Reader Example

Re: Chemistry Jokes

Half Life Patterns

Oxidizing and Reducing Agents

Re: Chemistry Jokes

Re: Chemistry Jokes

Enthalpy and Entropy

Entropy vs Gibbs

Extensive vs Intensive

Qsystem = -Qsurroundings help