Search found 9 matches

by Frances Relampagos 1J
Sun Mar 13, 2016 9:05 pm
Forum: *Alkenes
Topic: Two different geometric isomers
Replies: 1
Views: 312

Two different geometric isomers

Is it possible to have a Z and E occur in the same molecule?
by Frances Relampagos 1J
Wed Mar 02, 2016 12:09 am
Forum: *Cycloalkanes
Topic: Homework problem 1.21
Replies: 1
Views: 311

Homework problem 1.21

I don't understand why the answer is 5-methyl-cyclopenta-1,3-diene. Should it be 3-methyl-cyclopenta-1,4-diene since it has the smallest configuration?
by Frances Relampagos 1J
Tue Mar 01, 2016 11:45 pm
Forum: *Alkanes
Topic: Homework problem 1.17
Replies: 1
Views: 214

Homework problem 1.17

Why is the answer 4-tert-Butyl-1,2-dimethylcyclohexane and not 1-tert-Butyl-3,4-dimethylcyclohexane?
by Frances Relampagos 1J
Thu Feb 25, 2016 7:16 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Catalyst
Replies: 1
Views: 289


How do you determine the catalyst in a multi-step reaction?
by Frances Relampagos 1J
Sun Feb 07, 2016 10:56 pm
Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
Topic: Boltzmann Constant
Replies: 1
Views: 428

Re: Boltzmann Constant

It's 4^64 because the question states 64 molecules and W (degeneracy)= # of states ^(molecules).
If this was in moles, then you multiply it by Avogadro's constant which is 6.02214x10^23
by Frances Relampagos 1J
Sun Jan 31, 2016 9:31 pm
Forum: Phase Changes & Related Calculations
Topic: Chapter 8 #87
Replies: 1
Views: 275

Chapter 8 #87

I'm really confused about calculating phase changes. On number 87, it's asking for how much heat is required to convert a block of ice into water vapor. In the solutions manual, it lists the steps of each different changes but I'm confused where they're getting the numbers such as temperature and wh...
by Frances Relampagos 1J
Sun Jan 24, 2016 11:30 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7951
Views: 1215597

Re: Chemistry Jokes

Q: When one physicist asks another, "What's new?" what's the typical response?
A:C over lambda.

Two chemists go into a bar. The first one says "I think I'll have an H2O." The second one says "I think I'll have an H2O too" — and he died.
by Frances Relampagos 1J
Sat Jan 16, 2016 10:54 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Heat Capacity
Replies: 2
Views: 475

Heat Capacity

How do you differentiate which heat capacity to use in a problem?
by Frances Relampagos 1J
Sat Jan 09, 2016 1:51 pm
Forum: Phase Changes & Related Calculations
Topic: Different types of systems
Replies: 3
Views: 493

Re: Different types of systems

An example of a closed system would be some type of liquid in a closed container like a jar where the matter is not released, but energy is exchanged with its surroundings. An example of an isolated system is coffee in a closed, insulated container where the matter and energy are neither exchanged w...

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